VIDAMED INC
S-3, 1999-06-14
SURGICAL & MEDICAL INSTRUMENTS & APPARATUS
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  As filed As filed with the Securities and Exchange Commission on June __, 1999
                                                  Registration No. 333-
================================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                           --------------------------
                                    FORM S-3
                             REGISTRATION STATEMENT
                                      Under
                           The Securities Act of 1933
                           --------------------------
                                  VIDAMED, INC.
             (Exact name of Registrant as specified in its charter)
                           --------------------------
Delaware                                                              77-0314454

                              46107 Landing Parkway
                            Fremont, California 94538
                                 (510) 492-4900
                           --------------------------
                              DAVID J. ILLINGWORTH
                      President and Chief Executive Officer
                                  VidaMed, Inc.
                              46107 Landing Parkway
                            Fremont, California 94538
                                 (510) 492-4900
                           --------------------------
                                   Copies to:
                          Christopher D. Mitchell, Esq.
                        Wilson Sonsini Goodrich & Rosati
                            Professional Corporation
                               650 Page Mill Road
                               Palo Alto, CA 94304
                                 (415) 493-9300
                           --------------------------

         Approximate  date of  commencement  of proposed sale to the public:  As
soon as practicable after the effective date of this Registration Statement.

         If the only securities  being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, check the following box.
[_]

         If any of the  securities  being  registered  on  this  Form  are to be
offered  on a  delayed  or  continuous  basis  pursuant  to Rule 415  under  the
Securities Act of 1933,  other than  securities  offered only in connection with
dividend or interest reinvestment plans, check the following box.  [_]

         If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  registration  statement  number  of the  earlier
effective registration statement for the same offering.  [_]

         If this  Form is a  post-effective  amendment  filed  pursuant  to Rule
462(c) under the Securities Act, check the following box and list the Securities
Act  registration   statement  number  of  the  earlier  effective  registration
statement for the same offering.  [_]

         If delivery of the  prospectus  is expected to be made pursuant to Rule
434, please check the following box.  [_]

<TABLE>
                                                   CALCULATION OF REGISTRATION FEE
====================================================================================================================================
<CAPTION>
                                                                          Proposed               Proposed
                                                                           Maximum                Maximum
          Title of Each Class                      Amount                 Offering               Aggregate            Amount of
            of Securities to                       to be                    Price                Offering            Registration
             be Registered                       Registered               Per Share                Price                 Fee
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                           <C>                            <C>                <C>                   <C>
Common stock $0.001 par value.........        6,000,000 shares               $2.0156           $12,093,600            $3,362.02
- ------------------------------------------------------------------------------------------------------------------------------------
Warrants to purchase shares of common
stock(2)..............................        1,500,000                      $0.00                  N/A                  N/A
- ------------------------------------------------------------------------------------------------------------------------------------
Common stock issuable upon exercise of
Warrants (3)..........................        1,500,000 shares               $2.0156            $3,023,400             $840.51
- ------------------------------------------------------------------------------------------------------------------------------------
<FN>
- ----------------

(1)  Estimated  solely for the  purpose of  computing  the amount of the  registration  fee based on the average of the high and low
     prices of the common stock as reported on the Nasdaq National Market on June 8, 1999 pursuant  to Rule 457(c) promulgated under
     the Securities Act of 1933.

(2)  Pursuant to Rule 457(g) promulgated under the Securities Act of 1933, no filing fee is required.

(3)  Pursuant to Rule 416 promulgated under the Securities Act of 1933, there are also being registered such indeterminate number of
     additional shares as may become issuable pursuant to the anti-dilution provisions of the Warrants.
</FN>
</TABLE>
                           --------------------------
         The Registrant hereby amends this  Registration  Statement on such date
or dates as may be necessary to delay its  effective  date until the  Registrant
shall file a further amendment which specifically  states that this Registration
Statement shall  thereafter  become effective in accordance with Section 8(a) of
the  Securities  Act of 1933 or until the  Registration  Statement  shall become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.
================================================================================

<PAGE>


THE  INFORMATION IN THIS  PROSPECTUS IS NOT COMPLETE AND MAY BE CHANGED,  WE MAY
NOT SELL  THESE  SECURITIES  UNTIL THE  REGISTRATION  STATEMENT  FILED  WITH THE
SECURITIES AND EXCHANGE COMMISSION IS EFFECTIVE. THIS PROSPECTUS IS NOT AN OFFER
TO  SELL  THESE  SECURITIES  AND IT IS NOT  SOLICITING  AN  OFFER  TO BUY  THESE
SECURITIES IN ANY STATE WHERE THE OFFER OR SALE IF NOT PERMITTED.

                   SUBJECT TO COMPLETION, DATED JUNE __, 1999
PROSPECTUS
                                  VIDAMED, INC.

                        6,000,000 Shares of Common Stock
                   1,500,000 Warrants to Purchase Common Stock
                        1,500,000 Shares of Common Stock
                       Issuable Upon Exercise of Warrants


         The shares  offered in this  prospectus  involve a high degree of risk.
See "Risk Factors"  beginning on page 5 of this prospectus for information  that
you should consider before purchasing these securities.

         We may sell these  shares and  warrants  in  amounts,  at prices and on
terms  determined  at the time of the sale.  We will provide  specific  terms of
these  securities  in  supplements  to this  prospectus.  You  should  read this
prospectus and any supplement carefully before you invest.

         Our common shares are traded on the Nasdaq National Market System under
the symbol  "VIDA." On June 8, 1999,  the  average for the high and low price of
our common stock on the Nasdaq was $2.0156 per share.

                           --------------------------

         These   securities  have  not  been  approved  or  disapproved  by  the
Securities and Exchange  Commission or any state  securities  commission nor has
the  Securities  and  Exchange  Commission  or any state  securities  commission
determined if this prospectus is truthful or complete. Any representation to the
contrary is a criminal offense.

                  The date of this Prospectus is June __, 1999

<PAGE>


                                TABLE OF CONTENTS

                                                                            Page
Forward Looking Information....................................................2
Summary........................................................................3
Risk Factors...................................................................5
Use of Proceeds...............................................................12
Plan of Distribution..........................................................12
Description of Securities.....................................................13
Legal Matters.................................................................14
Experts.......................................................................14
Where You Can Find More Information...........................................15

         You should rely only on the  information  incorporated  by reference or
provided in this prospectus or in a prospectus supplement or amendment.  We have
not  authorized  anyone to provide you with  different  information.  We are not
making  an  offer  of these  securities  in any  state  where  the  offer is not
permitted.  Also, this  prospectus  does not offer to sell any securities  other
than the securities  covered by this prospectus.  You should not assume that the
information  in this  prospectus  or a  prospectus  supplement  or  amendment is
accurate as of any date on the front of the document.

         In this prospectus, unless otherwise indicated,  "VidaMed," "we," "us,"
and "our" refer to VidaMed, Inc. and its subsidiaries.


                           FOWARD LOOKING INFORMATION

         This  prospectus and the documents  incorporated  by reference  contain
forward looking  statements  within the meaning of Section 27A of the Securities
Act of 1933 and  Section  21E of the  Securities  Exchange  Act of  1934.  These
include  statements  of VidaMed's  expectations,  beliefs,  intentions or future
strategies.  We base all forward looking statements on information  available to
us on the date of this  prospectus.  We will not update any such forward looking
statements.  Actual  results could differ  materially  from those in the forward
looking  statements  because of the risk factors set forth under "Risk  Factors"
and in the documents incorporated by reference in this prospectus.


                                      -2-
<PAGE>

                                     SUMMARY

         VidaMed designs, develops, and markets urological systems that are used
for urinary tract disorders. Our technologically and clinically advanced systems
are cost  effective.  We  primarily  treat  the  enlarged  prostrate  or  Benign
Prostatic Hyperplasia, a noncancerous condition of the prostrate gland effecting
urination.  VidaMed's primary product,  the patented VidaMed TUNA Systems,  is a
reasonably priced alternative  therapy that minimizes  surgical  invasion,  side
effects and  complications  for this condition.  On October 8, 1996, we received
510(k) clearance from the United States Food and Drug Administration to sell the
TUNA System commercially in the United States. In the United States, we sell our
products primarily through direct sales personnel. Internationally, we primarily
sell to distributors who resell to physicians and hospitals.

         VidaMed  has  designed  and  developed  the  TUNA  System  and the TUNA
Procedure for restoring and improving  urinary flow in patients  suffering  from
Benign Prostatic Hyperplasia.  Compared to other therapies, such as drug therapy
and current surgical therapies, the TUNA Procedure:

         o  Results in fewer complications and adverse effects;
         o  Requires shorter recovery time; and
         o  Costs less.

         Because the Tuna Procedure can be performed on an outpatient  basis, it
will result in relatively fewer complications and reduced expense.

         The TUNA System mainly consists of:

         o  A  single-use   needle  ablation  hand  piece  that  delivers  radio
            frequency energy to the prostate;
         o  A low power radio frequency energy generator; and
         o  An optical device that allows direct viewing during the procedure.

TUNA HAND PIECE.

         The single-use  TUNA hand piece measures  18-1/2 French  (approximately
five  millimeters) in diameter and contains  needles along its sides that extend
at an angle of approximately 90 degrees.  A patented,  retractable shield covers
each needle. These shields protect the urethra and are adjusted by the urologist
to selectively control the area of prostate tissue ablated or pierced during the
procedure.  The needles and shields can independently  advance and retract using
controls  on the hand  piece.  Thermocouples  on the  shield tip and at the hand
piece tip record temperatures at the lesion site and in the prostatic urethra.

         The hand piece allows for irrigation,  aspiration and bladder  drainage
during the  procedure  without  removing the handpiece  from the bladder.  These
features  improve the view of the area of treatment  and reduce  post-procedural
urethral irritation. In addition, these capabilities allow the physician to more
closely control urethral tissue temperature during the procedure.

TUNA RADIO FREQUENCY GENERATOR.

         The TUNA radio frequency energy generator is designed  specifically for
use with the TUNA hand piece. The generator has digital displays  indicating the
temperature  at each  thermocouple,  the power being  delivered  to each needle,
ablation time and electrical impedance. The physician uses these measurements to
control  tissue  ablation.  The generator uses both automated and manual control
modes.

                                      -3-
<PAGE>

The  generator  has an  automatic  shut-off  activated by both  temperature  and
impedance  measurements  to ensure  controlled  ablation,  or  piercing,  of the
tissue.

TUNA OPTICS.

         The TUNA optical  device allows  precise  positioning of the hand piece
between the  verumontanum and the bladder neck during the procedure using direct
visualization.  The  optical  device  is  reusable  after  sterilization.  It is
equipped  with a three-way  exchange  adapter,  which allows the unit to be used
with endoscopic light sources made by other companies.

         The TUNA Procedure desiccates prostatic tissue and nerve endings in the
prostate to improve  symptoms such as urgency and  frequency  with urinary flow.
The  procedure  takes 30 to 45  minutes  using  local  anesthesia  which  may be
supplemented by intravenous  sedation.  The TUNA hand piece is inserted into the
patient's  urethra.  The two shielded needle electrodes then advance into one of
the two  lateral  lobes  of the  prostate.  Controlled  radio  frequency  energy
delivered by the needle  electrodes heats targeted portions of the prostate lobe
to temperatures of 90 to 100 degrees  centigrade,  while the shields protect the
urethra from thermal damage.  Once a lesion of sufficient size has been created,
the urologist retracts the needles and places the hand piece at the next site to
be ablated and repeats the process.

         Typically,  two treatments in each lateral  prostate lobe are performed
depending upon the size of the prostate. If the patient is unable to urinate due
to temporary  swelling or irritation of the urethra, a catheter will be inserted
into the patient's  urethra.  This catheter,  if inserted,  is typically left in
place for one to two days.

THE TUNA SYSTEM.

         The design of the VidaMed  TUNA  System  offers  advantages  over other
therapies.  Because the TUNA System shields the urethra and delivers  controlled
energy  directly into the interior of the prostate,  the procedure  protects the
prostatic  urethra  and  reduces  the  risk  of  unintended  thermal  damage  to
surrounding  structures.  In other procedures where this control does not exist,
the prostatic urethra and other structures can be damaged or destroyed,  causing
significant  patient discomfort and  complications.

         Complications  associated  with  transurethral  resection  of  prostate
surgery, the standard treatment for Benign Prostatic Hyperplasia, include:

         o        Impotence;
         o        Retrograde ejaculation; and
         o        Incontinence.

Clinical trials of the TUNA Procedure  indicate that the TUNA Procedure  results
in fewer of these complications.

         The  cost  of the  TUNA  Procedure  in  the  United  States,  including
physician  charges,  will be less than the  standard  treatment.  The TUNA radio
frequency  generator  costs less than the general  surgical  lasers  required to
perform laser  procedures and the ultrasound and microwave  devices required for
other  surgical  procedures.  The TUNA  Procedure  can be done on an  outpatient
basis, further reducing costs.

                                      -4-
<PAGE>

                                  RISK FACTORS

         An  investment  in the  securities  being  offered  by this  prospectus
involves a high degree of risk. You should consider the following  factors,  and
those discussed elsewhere in this prospectus, before purchasing our securities.

VIDAMED HAS A LIMITED HISTORY OF OPERATIONS.

         Since  inception  in July  1992,  we have  been  primarily  engaged  in
research  and  development  of the  VidaMed  TUNA  System.  We have  experienced
significant  operating  losses since inception and, as of December 31, 1998, had
an accumulated deficit of $88.2 million.

VIDAMED ANTICIPATES LOSSES RELATED TO PRODUCT DEVELOPMENT.

         The TUNA System and other new products,  if any,  will require  product
development,  clinical,  regulatory,  marketing and other expenditures.  VidaMed
expects operating losses to continue as it continues to:

         o  Expand marketing and sales activities;
         o  Fund  clinical  trails  to  support   regulatory  and  reimbursement
            approvals; and
         o  Engage in research and development.

         Both domestically, and abroad, profitability remains uncertain. Results
of  operations  may  fluctuate  significantly  from quarter to quarter.  Factors
affecting operations include:

         o  Regulatory actions;
         o  Reimbursement matters;
         o  Progress of clinical trials;
         o  Market acceptance of the TUNA System;
         o  Pricing promotions;
         o  Volume discounts to distributors;
         o  Alternative therapies for Benign Prostatic Hyperplasia; and
         o  Competition.

VIDAMED'S PRODUCTS MUST ACHIEVE GREATER ACCEPTANCE.

         VidaMed's  TUNA  Procedure  is  a  new  therapy.  Even  when  necessary
international and United States reimbursement  approvals are obtained,  the TUNA
System must gain market  acceptance  among  physicians,  patients and healthcare
payors.  Physicians will not recommend the TUNA Procedure  unless they conclude,
based on clinical data and other factors,  that it is an attractive  alternative
to other methods of treatment.  Physicians  may not recommend the TUNA Procedure
until  the  duration  of the  relief  provided  by the  procedure  can be better
established and acceptable reimbursement from health care payors is available.

         Broad use of the TUNA  System  will  require  the  training of numerous
physicians.  The time required to complete such training could result in a delay
or dampening of market acceptance.

         Health  care  payor  acceptance  of the  TUNA  Procedure  will  require
evidence  that it costs  less  than  other  therapies.  The TUNA  Procedure  can
demonstrate cost effectiveness over time if it provides  long-lasting  relief to
patients.  A thorough  analysis can assess the durability of the relief provided
by TUNA  therapy.  This  requires  follow-up  data on patients  over a period of
years.

                                      -5-
<PAGE>

         Patients' acceptance of the procedure will depend on factors including:

         o  Physician recommendations;
         o  Degree of invasiveness;
         o  Rate and severity of complications; and
         o  Relative effectiveness of other therapies.

VIDAMED DEPENDS ON THIRD PARTY REIMBURSEMENT.

         Our success among other  things,  requires  satisfactory  reimbursement
from  health  care payors for the TUNA  Procedure.  In the United  States and in
international  markets,  third party  reimbursement  is generally  available for
existing therapies. In the United States, third party reimbursement for the TUNA
Procedure depends on decisions by the local Medicare Medical Directors who adopt
Medicare  reimbursement  guidelines as well as by individual health  maintenance
organizations, private insurers and other payors.

         Reimbursement  systems in international  markets vary  significantly by
country.  Many  international  markets have  governmentally  managed health care
systems  that  govern  reimbursement  for new devices  and  procedures.  In most
markets,  there are private insurance systems as well as governmentally  managed
systems.  We have  received  approvals  by the Ministry of Health and Welfare in
Japan and by the British Provident  Association Ltd., the largest private health
care insurer in the United Kingdom.

         Reimbursement  requires  physician advocacy of the VidaMed TUNA System.
Availability of reimbursement  will depend not only on the clinical efficacy and
direct  cost of the TUNA  Procedure,  but  also on the  duration  of the  relief
provided by the procedure.  In the United States,  TUNA Procedures are currently
being reimbursed by certain private payors.  However,  Medicare reimbursement is
particularly  critical for widespread market acceptance of the TUNA Procedure in
the United States because of the age of patients using it.

         CPT Code  #53852,  covering  the  physician  fee  component of the TUNA
Procedure,  was included in the 1998 edition of CPT codes which became effective
January 1,  1998.  If adopted by local  Medicare  Medical  Directors,  this code
should enhance the reimbursement  process for physicians  performing the VidaMed
TUNA Procedure in an outpatient hospital environment.  The CPT code is presently
active in over 35 states covering reimbursement of the VidaMed TUNA Procedure in
the  hospital.  While we  continue  to work  with the  remaining  state  medical
directors, there is no assurance when or if the remaining states will reimburse.

         Office  reimbursement  is expected to phase in after the federal office
of Health Care Financing  Administration resolves its Year 2000 issues, which is
projected  to  be  on or  after  June  30,  2000.  We  cannot  assure  you  that
office-based  reimbursement  for our  products  will be  available in the United
States  or  in  international  markets  under  either  governmental  or  private
reimbursement  systems at adequate  reimbursement levels. Nor can we assure that
physicians will support reimbursement for the VidaMed TUNA Procedure. Changes in
reimbursement  policies of governmental or private health care payors could also
have a material adverse effect on VidaMed's  business,  financial  condition and
results of operations.

VIDAMED MAY REQUIRE ADDITIONAL FINANCING.

         VidaMed plans to:

         o  Continue clinical trails for regulatory and reimbursement approvals;

                                      -6-
<PAGE>

         o  Expand sales and marketing activities; and
         o  Research and develop products.

         Expenditures may be greater than anticipated if unforeseen difficulties
arise.  Our financial plan indicates that funds  available  through our existing
bank credit facilities, cash reserves and the future sales will be sufficient to
meet  our  operating  and  capital  requirements  during  the  next  12  months.
Nevertheless,  we cannot  assure you that  VidaMed  will not require  additional
financing within this time frame.

         The Company's  future  liquidity and capital  requirements  will depend
upon  numerous  factors,  including;

         o  Progress of clinical trials;
         o  Actions relating to regulatory and reimbursement matters; and
         o  Extent to which the TUNA System gains market acceptance.

         Any  additional  financing,  if  required,  may  not  be  available  on
satisfactory  terms or at all. Future equity  financing may dilute the equity of
our current  stockholders.  Future debt financings may require VidaMed to pledge
assets and to comply with financial and operational covenants.

VIDAMED'S STOCK PRICE WILL FLUCTUATE.

         The  stock  market  has  experienced   significant   price  and  volume
fluctuations  that are  unrelated to the  operating  performance  of  particular
companies  necessarily cause such fluctuations.  Conversely,  these broad market
fluctuations  may  adversely  affect the market price of our common  stock.  The
market  price of our  common  stock is likely to be highly  volatile  because of
factors  such  as:

         o  Fluctuations in the Company's operating results;
         o  Announcements of technological innovations or new products;
         o  Food and Drug Administration and international regulatory actions,
         o  Actions with respect to reimbursement matters;
         o  Developments with respect to patents or proprietary rights;
         o  Public concern as to the safety of our products;
         o  Changes   in  health   care   policy  in  the   United   States  and
            internationally;
         o  Changes in stock market analyst recommendations;
         o  Other  medical  device  companies  or the  medical  device  industry
            generally;
         o  General market conditions.

MOST OF VIDAMED'S COMPETITORS HAVE GREATER RESOURCES.

         Intense  market  competition  exists for treatment of Benign  Prostatic
Hyperplasia  and  such  competition  is  expected  to  increase.  Our  principal
competition  will most  likely  come from  invasive  surgical  procedures,  drug
therapy,  other minimally invasive  therapies and watchful waiting.  Most of our
competitors have financial,  technical, research, marketing, sales, distribution
and other resources that are  significantly  greater than ours. We cannot assure
you that our  competitors  will not succeed in developing or marketing  superior
technologies and products.

         Any  product we develop  that gains  regulatory  approval  will have to
compete  for market  acceptance  and  market  share.  Important  factors in such
competition include the relative speed with which we can:

                                      -7-
<PAGE>

         o  Develop products;
         o  Complete clinical testing
         o  Obtain regulatory approval processes;
         o  Gain reimbursement acceptance;
         o  Supply commercial quantities of the product to the market; and
         o  Demonstrate safe, effective and lasting treatment.

VIDAMED'S PRODUCTS MUST COMPLY WITH U.S. GOVERNMENT REGULATIONS.

         The Food and  Drug  Administration  regulates  the TUNA  System  in the
United  States as a medical  device under the Federal Food,  Drug,  and Cosmetic
Act.  Pursuant  to  the  act,  the  administration  regulates  the  manufacture,
distribution  and production of all medical  devices in the United  States.  Any
failure to comply  with the  requirements  of the act can result in:

         o Fines;
         o Injunctions;
         o Civil penalties;
         o Recall or seizure of products;
         o Total or partial suspension of production;
         o Failure of the government to grant approval for devices; and
         o Criminal prosecution.

         Medical devices are classified into Class I, II or III, on the basis of
the controls  necessary  to  reasonably  ensure their safety and  effectiveness.
Controls  for  Class I  devices  include  general  controls  such as,  labeling,
premarket  notification  and  adherence  to  standards  set by the Food and Drug
Administration for good manufacturing  practices.  Controls for Class II devices
include the use of special  controls such as performance  standards,  postmarket
surveillance,  patient registries, and federal guidelines.  Generally, Class III
devices such as life-sustaining,  life-supporting and implantable devices or new
devices which have not been found  substantially  equivalent to legally marketed
devices are those  which must  receive  premarket  approval by the Food and Drug
Administration.

         Before a new device can be introduced into the market, the manufacturer
must  generally  obtain  clearance  through  either a 510(k)  notification  or a
premarket  approval.  A 510(k)  clearance  will be granted if the submitted data
establishes that the proposed device is "substantially  equivalent" to a legally
marketed  Class I or II medical  device,  or to a class III  medical  device for
which the  administration  has not called for premarket  approval.  The Food and
Drug Administration has recently been requiring a more rigorous demonstration of
substantial  equivalence than in the past. It generally takes from three to nine
months from submission to obtain a 510(k) clearance, but it may take longer. The
administration  may  determine  that the  proposed  device is not  substantially
equivalent,  or that  additional  data is needed before a  determination  can be
made.  A  "not  substantially  equivalent"  determination,   or  a  request  for
additional data,  could delay the market  introduction of new products that fall
into this category and adversely  effect our business,  financial  condition and
results of operations.  There can be no assurance  that:

         o  We will obtain 510(k) clearance within the above time frames,  if at
            all, for any device for which it files a future 510(k) notification;
            or
         o  We will not be required to submit a premarket  approval  application
            for any device which we may develop in the future.

                                      -8-
<PAGE>

         For any of  VidaMed's  products  that are  cleared  through  the 510(k)
process,  including our TUNA System,  modifications  or enhancements  that could
affect safety or efficacy will require new 510(k) submissions.

VIDAMED PRODUCTS MUST COMPLY WITH FOREIGN GOVERNMENT REGULATIONS.

         Sales of  medical  devices  outside  the United  States are  subject to
regulatory  requirements  that vary  widely from  country to  country.  The time
required  to  obtain  approval  for sale in a foreign  country  may be longer or
shorter  than that  required in the United  States.  The  requirements  may also
differ.  VidaMed has received regulatory approvals where required for commercial
sale of the TUNA System in all major international markets.

         In June 1994,  we received a report of  compliance  for the TUNA System
from the British Standards  Institute.  In August 1994 we received a certificate
of compliance from TUV, a European  quality  assurance  auditor,  certifying the
TUNA System's  safety and its adherence to published  electronic  and mechanical
specifications.

         These  certifications allow the Company to affix a mark, referred to as
the CE mark, to the  VidaMed  TUNA  System.  The CE mark  verifies  approval  to
commercially  market and sell the TUNA System in all  countries  of the European
Economic Area. In order to maintain these approvals,  we are subject to periodic
inspections.  Additional product approvals from foreign  regulatory  authorities
may be required for international sale of our general electrosurgical device for
which a 510(k)  notification  has been filed.  Failure to comply with applicable
regulatory  requirements can result in loss of previously received approvals and
other  sanctions  and could  have a  material  adverse  effect on our  business,
financial condition and results of operations.

         VidaMed's  distributor in Japan, Century Medical,  Inc., is responsible
for management of clinical  trials and obtaining  regulatory  and  reimbursement
approval for the TUNA System.  Such  regulatory  approval was received  from the
Japanese Ministry of Health and Welfare in July 1997. However, failure to obtain
approval of current or future  products or to obtain market  acceptance  for the
TUNA Procedure in Japan could preclude the commercial  viability of our products
in Japan and could  adversely  effect on our business,  financial  condition and
results of operations.

MANUFACTURING DIFFICULTIES POSE RISKS TO VIDAMED.

         VidaMed  relies on  outside  companies  to  manufacture  our  products.
Manufacturers  often  encounter  difficulties  in scaling up  production  of new
products. Such difficulties involve:

         o  Production yields;
         o  Quality control and assurance;
         o  Component supply; and
         o  Lack of qualified personnel.

         These  difficulties,  if  encountered by the  manufacturers  of VidaMed
products,  could adversely effect our business,  financial condition and results
of operations.  We cannot assure you that current  manufacturers will adequately
meet our manufacturing needs on an on-going basis.

         Any products  manufactured  or distributed by VidaMed  pursuant to Food
and Drug  Administration  clearances  or  approvals  are  subject to  continuing
regulation, including recordkeeping and reporting requirements regarding use  of

                                      -9-
<PAGE>

the  device.  Manufacturing  facilities  where we  outsource  products  are also
subject  to  periodic  inspection  by  federal,  state  and  foreign  regulatory
agencies.  Failure of our  manufacturers to comply with regulatory  requirements
could adversely effect our business.

VIDAMED'S CANNOT COMPLETELY PROTECT ITS INTELLECTUAL PROPERTY.

         We have been issued 42 United  States  patents  and 40 foreign  patents
covering a method of prostate  ablation  using the  VidaMed  TUNA System and the
design of the TUNA System. We currently have 16 patent  applications  pending in
the United States and 49 corresponding  patent  applications  pending in various
foreign countries.  In addition,  we hold licenses to certain technology used in
the TUNA System. We cannot assure that our issued United States patents,  or any
patents which may be issued to us, will offer any degree of protection.

         We cannot  assure that any of our patents or patent  applications  will
not be challenged,  invalidated or circumvented in the future. In addition, many
of  our  competitors  have  substantial  resources  and  have  made  substantial
investments in competing  technologies.  Such  competitors may seek to apply for
and obtain  patents that will  prevent,  limit or interfere  with our ability to
make, use or sell our products  either in the United States or in  international
markets.

         Extensive litigation regarding patents and other intellectual  property
rights characterize the medical device industry. Companies in the medical device
industry  have  used  intellectual  property  litigation  to gain a  competitive
advantage.  VidaMed is aware of patents held by other participants in the Benign
Prostatic  Hyperplasma  market.  We have been and may in the future be  notified
that we may be infringing patent or other  proprietary  rights.  Conversely,  in
1998,  we entered a  settlement  agreement  with  respect to a claim that we had
brought against another medical device company. Although patent and intellectual
property  disputes in the medical  device area have often been  settled  through
licensing or similar arrangements,  costs could be substantial and could include
ongoing  royalties.  We cannot assure that necessary licenses would be available
to us on satisfactory terms or at all.

         The defense and  prosecution of  intellectual  property  suits,  United
States and  Trademark  Office  interference  proceedings  and related  legal and
administrative proceedings consume money and time. Nevertheless,  litigation may
be necessary to:

         o Enforce our patents;
         o Protect our trade secrets or know-how; or
         o Determine the enforceability,  scope and validity of the proprietary
            rights of others.

         Litigation  or  interference  proceedings  could  drain  our  financial
resources   and  divert  the  efforts  of  our  human   resources.   An  adverse
determination  in litigation  or  interference  proceedings  could subject us to
significant  liabilities  to third  parties or require us to seek  licenses from
third  parties.  An  adverse  determination  in  a  judicial  or  administrative
proceeding  or  failure  to obtain  necessary  licenses  could  prevent  us from
manufacturing  and  selling  our  products,  which  would  adversely  effect our
business, financial condition and results of operations.

         In  addition  to  patents,  we rely on trade  secrets  and  proprietary
know-how.  We seek to protect these, in part,  through  proprietary  information
agreements  with  employees,  consultants  and other  parties.  Our  proprietary
information  agreements with employees and consultants contain industry standard
provisions.  Such provisions require  individuals to assign to VidaMed,  without
additional  consideration,  any  inventions  that  they  conceive  or  reduce to
practice while employed or retained by us, subject to customary  exceptions.  We
cannot  assure  that   proprietary   information   agreements   with  employees,

                                      -10-
<PAGE>

consultants  and  others  will  not be  breached,  that we would  have  adequate
remedies for any breach,  or that our trade  secrets will not  otherwise  become
known to or independently developed by competitors.

         The proprietary information agreement between the Company and Stuart D.
Edwards,  one of our founders,  obligates  Mr.  Edwards to assign to VidaMed his
inventions and related  intellectual  property only in the field of urology. Mr.
Edwards  has   assigned  to  Rita  Medical   Systems,   Inc.,   formerly   ZoMed
International,  Inc.,  his  inventions  in the cancer  field.  Mr.  Edwards  has
conceived of, and may continue to conceive of,  various  medical  device product
concepts for other fields outside of urology. Mr. Edwards' intellectual property
includes (i) certain  product  concepts  for the  treatment of snoring and sleep
apnea  that  have  been  assigned  and  (ii)  certain  product  concepts  in the
gynecology field that have been licensed to an unrelated third party. Such party
also has an option to purchase all future technology developed by Mr. Edwards in
the  gynecology  field.  Product  concepts  outside of urology  developed by Mr.
Edwards will not be owned by or commercialized through VidaMed, and VidaMed will
have no rights or ownership interests with respect thereto.

         We have  entered  into a cross  license  agreement  with  Rita  Medical
Systems.  Under the cross license,  Rita has the right to use VidaMed technology
in the cancer  field and  VidaMed  has the right to use Rita  technology  in the
treatment  of  urological  diseases and  disorders.  The cross  license  between
VidaMed and Rita allows both  companies  to develop  products  for  treatment of
prostate cancer and cancers of the lower urinary tract, and VidaMed and Rita may
therefore become competitors in this field.

VIDAMED IS AT RISK FOR PRODUCT LIABILITY CLAIMS.

         Although we have not experienced any product  liability claims to date,
any such claims could adversely  impact us. We may not be able to obtain product
liability insurance and evaluate our insurance requirements on an ongoing basis.
We cannot assure that product  liability  claims will not exceed such  insurance
coverage  limits  or that  such  insurance  will be  available  on  commercially
reasonable terms or at all.

VIDAMED'S CORPORATE STRUCTURE INHIBITS STOCKHOLDERS' CONTROL.

         Certain  provisions  of our  Certificate  of  Incorporation  and Bylaws
inhibit  stockholders  control of VidaMed  by:

         o  Allowing the Company to issue  preferred  stock  without any vote or
            further action by the stockholders;
         o  Eliminating  the right of  stockholders  to act by  written  consent
            without a meeting; and
         o  Eliminating cumulative voting in the election of directors.

         Because these provisions may make it more difficult for stockholders to
take  certain  corporate  actions,  they could have the  effect of  delaying  or
preventing a change in control of VidaMed. Such provisions could limit the price
that certain  investors  might be willing to pay for future shares of our common
stock.

NO PUBLIC MARKET EXITS FOR VIDAMED'S WARRANTS.

         We do not  intend  to apply  for the  listing  of the  warrants  on any
exchange. Accordingly, no public market for the warrants will exist prior to the
offering of the warrants,  and there can be no assurance  that an active trading
market will  develop in any of the  warrants  after any  offering  thereof.  The
exercise  price and  terms of the  warrants  may be  determined  arbitrarily  by
negotiations with any purchaser.  Factors  considered in such  negotiations,  in
addition to prevailing market conditions, may include:

                                      -11-
<PAGE>

         o  The history and prospects of the industry;
         o  An assessment of our management;
         o  VidaMed's prospects;
         o  Our capital structure; and
         o  Other relevant factors.

         Therefore,  the  exercise  price  and  terms  of the  warrants  may not
necessarily  bear  any  relationship  to  established  valuation  criteria.  The
exercise price, therefore, may not indicate prevailing prices in a public market
for the warrants.

         The  warrants  will  not be  exercisable  unless,  at the  time  of the
exercise:

         o  VidaMed has a current prospectus covering the shares of common stock
            issuable upon exercise of the warrants; or
         o  Such shares have been  registered,  qualified or deemed to be exempt
            under  the  securities  laws  of  the  state  of  residence  of  the
            exercising holder of the warrants.

         We will use our best  efforts  to have all the  shares of common  stock
issuable upon exercise of the warrants  registered or qualified on or before the
exercise date and to maintain a current  prospectus  until the expiration of the
warrants.  However, we cannot assure that we will be able to do so. The warrants
may be deprived of value if a current  prospectus  covering the shares of common
stock issuable upon the exercise of the warrants is not kept effective.

                                 USE OF PROCEEDS

         Unless otherwise specified in the applicable  prospectus supplement for
any offering of these  securities,  VidaMed  intends to use the net proceeds for
general corporate purposes.

         Until  VidaMed  uses the proceeds in our  business,  we will invest the
proceeds in short-term investment grade interest bearing instruments.

                              PLAN OF DISTRIBUTION

         VidaMed  may  sell  these   securities   to  or  through  one  or  more
underwriters, and also may sell these securities directly to other purchasers or
through agents.

         These  securities may be distributed in one or more  transactions  at a
fixed price or prices,  which may be changed, at market prices prevailing at the
time  of  sale,  at  prices  related  to such  prevailing  market  prices  or at
negotiated prices.

         In  connection  with  the sale of these  securities,  underwriters  may
receive compensation from VidaMed or from purchasers of the securities, for whom
they may act as agents, in the form of discounts,  concessions,  or commissions.
Underwriters  may sell these  securities to or through  dealers and such dealers
may receive compensation in the form of discounts,  concessions,  or commissions
from the underwriters  and/or  commissions from the purchasers for whom they may
act as agents.  Any such  underwriter or agent will be identified,  and any such
compensation   received  from  VidaMed  will  be  described  in  the  prospectus
supplement.

         Shares sold pursuant to a prospectus supplement and any shares issuable
upon  exercise  of  any  of  these  warrants  issued  pursuant  to a  prospectus
supplement  are  expected  to be listed on the Nasdaq  National  Market.  Unless
otherwise  specified  in the  related  prospectus  supplement,  each  series  of

                                      -12-
<PAGE>

warrants will be a new issue with no established trading market. We may elect to
list any series of warrants on an exchange,  but are not  obligated to do so. It
is possible that one or more underwriters may make a market in a series of these
warrants,  but will not be  obligated  to do so and may  discontinue  any market
making at any time without  notice.  Therefore,  no assurance can be given as to
the liquidity of the trading market of any these securities.

         Under  agreements we may enter into,  underwriters,  dealers and agents
who  participate  in the  distribution  of these  securities  may be entitled to
indemnification by VidaMed against certain  liabilities,  including  liabilities
under the Securities Act.

         Underwriters,  dealers and agents may engage in  transactions  with, or
perform  services  for, or be customers  of,  VidaMed in the ordinary  course of
business.

                            DESCRIPTION OF SECURITIES

SHARES.

         VidaMed's  authorized  capital stock  consists of 60,000,000  shares of
common  stock,  $.001 par value per share,  and  5,000,000  shares of  preferred
stock,  $.001 par value per  share.  As of June 8,  1999,  20,579,456  shares of
common stock were outstanding, held of record by approximately 272 stockholders.
No shares of the preferred stock were  outstanding as of June 8, 1999,  although
60,000 shares of the preferred stock have been designated Series A Participating
Preferred  Stock.  One  one-thousandth  of a share  of  Series  A  Participating
Preferred  Stock is issuable  upon  exercise of each  preferred  share  purchase
right.  Each  outstanding  share of common stock also  represents  the preferred
share purchase right related to that share of common stock.

WARRANTS.

         The following  summary  describes the warrants and sets forth terms and
provisions. Such summary is not necessarily complete. We qualify this summary in
all respects by reference to the actual text of the warrant.

         Exercise Price and Terms. Each warrant here registered will entitle the
registered  holder to purchase,  for a fixed time period  beginning  the date of
issuance,  a fixed  number of shares of common stock at a fixed price per share.
The price may be adjusted  according to the  anti-dilution  and other provisions
referred  to below.  The holder of any  warrant  will be able to  exercise  such
warrant by  surrendering  the certificate  representing  the warrant to American
Securities Transfer, Inc., the warrant agent.

         The  subscription  form on the warrant must be properly  completed  and
executed,  and the exercise price must be paid. You may exercise the warrants at
any  time,  in whole or in part,  at the  applicable  exercise  price  until the
warrants expire.  However, the warrants may include a provision enabling VidaMed
to call the  warrants,  compelling  holders to  exercise,  in the event that the
price per share of VidaMed's  stock  exceeds the exercise  price of the warrants
for an enumerated  period of time.

         No fractional  shares will be issued upon the exercise of the warrants.
The warrants may not provide for cashless  exercise.  The exercise  price of the
warrants may not relate to their value. You should not regard the exercise price
as an indication of any future market price of the common stock.

         Adjustments.  The  exercise  price  and the  number of shares of common
stock  purchasable  upon the  exercise of the  warrants  will be  adjusted  when
certain events occur, including:

                                      -13-
<PAGE>

         o  Stock splits;
         o  Reverse stock splits; or
         o  Combinations of the common stock.

         In order to enable  warrant  holders to acquire  securities or property
receivable by a holder of common stock that might have been  purchased  upon the
exercise of the  warrant,  the exercise  price may be adjusted in the  following
cases:

         o  Reclassification or exchange of common stock;
         o  VidaMed's  consolidation or merger with or into another  corporation
            (other  than a  consolidation  or  merger  in which  VidaMed  is the
            surviving corporation); or
         o  Sale of all or substantially all of VidaMed's assets

         Transfer,  Exchange and  Exercise.  The warrants  will be in registered
form and may be  presented  to the  warrant  agent  for  transfer,  exchange  or
exercise  at any time on or prior to their  expiration  date,  at which time the
warrants will become  wholly void and of no value.  If a market for the warrants
develops, the holder may sell the warrants instead of exercising them. There can
be no  assurance,  however,  that a market  for the  warrants  will  develop  or
continue and VidaMed does not intend to apply for the listing of the warrants on
any exchange.

         Warrant  Holder Not a  Stockholder.  The warrants  will not confer upon
holders any voting, dividend or other rights as stockholders of VidaMed.

         Modification of warrant.  Modification  of the warrants,  including the
modification  of the  number  of shares of  common  stock  purchasable  upon the
exercise of any warrant, the exercise price and the expiration date with respect
to any  warrant,  will  require  the consent of the holders of a majority of the
warrants.

         The  warrants  will  not be  exercisable  unless,  at the  time  of the
exercise,  VidaMed has a current prospectus  covering the shares of common stock
issuable upon exercise of the  warrants,  and such shares have been  registered,
qualified  or  deemed to be exempt  under  the  securities  laws of the state of
residence of the  exercising  holder of the  warrants.  Although we will use our
best efforts to have all the shares of common stock  issuable  upon  exercise of
the warrants  registered  or  qualified  on or before the  exercise  date and to
maintain a current prospectus until the expiration of the warrants, there can be
no assurance that we will be able to do so.

                                  LEGAL MATTERS

         The validity of the common stock offered hereby will be passed upon for
us by Wilson Sonsini Goodrich & Rosati, Professional Corporation,  650 Page Mill
Rd., Palo Alto, California 94304.

                                     EXPERTS

         Ernst & Young LLP, independent auditors,  have audited our consolidated
financial statements and schedule included in our annual report on form 10-K for
the year  ended  December  31,  1998,  as set  forth in their  report,  which is
incorporated by reference in this  prospectus and elsewhere in the  registration

                                      -14-
<PAGE>

statement.  Our financial  statements and schedule are incorporated by reference
in reliance on Ernst & Young LLP's report,  given on their  authority as experts
in accounting and auditing.

                       WHERE YOU CAN FIND MORE INFORMATION

GOVERNMENT FILINGS.

         We file  proxy  statements,  reports  and  other  information  with the
Securities and Exchange  Commission in accordance  with the Securities  Exchange
Act of 1934. You can inspect and copy this  information  at regional  offices of
the Commission located at Citicorp Center, 500 West Madison Street,  Suite 1400,
Chicago, Illinois 60661-2511 and 7 World Trade Center, Suite 1300, New York, New
York 10048;  and at the Public  Reference  Office of the Commission at 450 Fifth
Street, N.W., Washington, D.C. 20549.

         You can also obtain copies of such  material from the Public  Reference
Section of the Commission,  450 Fifth Street,  N.W.,  Washington,  D.C. 20549 at
prescribed  rates.  You may obtain  information  on the  operation of the Public
Reference  Room  by  calling  the SEC at  1-800-SEC-0330.  The  Commission  also
maintains  a World  Wide Web site on the  Internet  at  http://www.sec.gov  that
contains  reports,  proxy  and  information  statements  and  other  information
regarding  VidaMed  and  other  companies  that  file  electronically  with  the
Commission.

         Our common stock is traded on the Nasdaq National  Market.  Our reports
and other information may be inspected at the National Association of Securities
Dealers, Inc., 1735 K Street, N.W., Washington, D.C. 20006.

         This Prospectus is part of a registration  statement that we filed with
the  Securities  and Exchange  Commission  under the  Securities Act of 1933, as
amended.  You can  receive  copies of  registration  statement  from the  Public
Reference Section of the Commission,  450 Fifth Street, N.W.,  Washington,  D.C.
20549, upon payment of the fees of the Commission's fees.

INFORMATION INCORPORATED BY REFERENCE.

         We  incorporate  by reference  the  following  documents and all future
documents filed by VidaMed pursuant to Sections 13(a), 13(c), 14 or 15(d) of the
Exchange Act until this offering is completed.

         1. Our  registration  statements on Form 8-A filed with the  Securities
            and Exchange Commission on June 17, 1995 and January 31, 1997;
         2. The annual  report on Form 10-K for the fiscal  year ended  December
            31, 1998 filed on March 31, 1999;
         3. Our  quarterly  report on Form 10-Q for the quarter  ended March 31,
            1999 filed on April 17, 1999;
         4. Our current report on Form 8-K filed on September 24, 1997.

         You may receive free copies of these filings by writing or  telephoning
us at the following address:

                  VidaMed, Inc.
                  46107 Landing Parkway
                  Fremont, California 94538
                  Telephone:  (510) 492-4902
                  Attention:  Investor Relations

                                      -15-
<PAGE>


                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution

         The following table sets forth the various  expenses in connection with
the sale  and  distribution  of the  securities  being  registered,  other  than
underwriting  discounts and commissions.  All of the amounts shown are estimates
except the Securities and Exchange Commission  registration fee, the NASD filing
fee and the Nasdaq National Market listing fee.

Securities and Exchange Commission registration fee ...............  $     4,203
Nasdaq National Market listing fee ................................       17,500
Printing and engraving expenses ...................................        5,000
Legal fees and expenses ...........................................       25,000
Accounting fees and expenses ......................................        7,500
Transfer agent and registrar fees and expenses ....................        1,500
Miscellaneous .....................................................        2,136
                                                                     -----------

                Total .............................................  $    62,839
                                                                     ===========

Item 15. Indemnification of Directors and Officers

         Section  145  of  the  Delaware  General   Corporation  Law  permits  a
corporation to include in its charter  documents,  and in agreements between the
corporation  and its directors and officers,  provisions  expanding the scope of
indemnification beyond that specifically provided by the current law.

         Article VIII of the Registrant's  Certificate of Incorporation provides
for the  indemnification  of directors to the fullest extent  permissible  under
Delaware law.

         Article VI of the Registrant's  Bylaws provides for the indemnification
of officers,  directors and third parties acting on behalf of the corporation if
such person acted in good faith and in a manner reasonably believed to be in and
not opposed to the best  interest of the  corporation,  and, with respect to any
criminal action or proceeding,  the  indemnified  party had no reason to believe
his conduct was unlawful.

         The Registrant  has entered into  indemnification  agreements  with its
directors and executive officers, in addition to indemnification provided for in
the Registrant's  Bylaws, and intends to enter into  indemnification  agreements
with any new directors and executive officers in the future.

                                      II-1
<PAGE>

Item 16. Exhibits

Exhibit Number                    Description
- --------------                    -----------

     4.1++          Certificate of Incorporation of Registrant.

     4.2++          Restated Bylaws of Registrant.

     4.3+++         Form of common stock Certificate.

     4.4++++        Preferred  Shares Rights  Agreement  dated as of January 27,
                    1997,   between  the  Registrant  and  American   Securities
                    Transfer  &  Trust,  Inc.,   including  the  Certificate  of
                    Designations, the Form of Rights Certificate and the Summary
                    of Rights  attached  thereto  as  Exhibit  A,  Exhibit B and
                    Exhibit C, respectively.

     4.5            Form of common stock Purchase Warrant.

     5.1            Opinion of Wilson  Sonsini  Goodrich & Rosati,  Professional
                    Corporation.

     23.1           Consent of Ernst & Young LLP, Independent Auditors.

     23.2           Consent of Wilson  Sonsini  Goodrich & Rosati,  Professional
                    Corporation (included in Exhibit 5.1).

     24.1           Power of Attorney (included on P. II-4).

- ----------

+        Filed as exhibit 99.1 to the  Registrant's  Current  Report on Form 8-K
         filed with the Commission on September 24, 1997 and incorporated herein
         by reference.

++       Filed as an exhibit to the Registrant's  Annual Report on Form 10-K for
         the fiscal  year ended  December  31, 1995 and  incorporated  herein by
         reference.

+++      Filed as an exhibit to the Registrant's  Registration Statement on Form
         S-1 (File No. 33-90746) and incorporated herein by reference.

++++     Filed as an Exhibit to the Registrant's  Registration Statement on Form
         8-A filed with the  Commission  on January  31,  1997 and  incorporated
         herein by reference.

Item 17.  Undertaking

                Insofar as  indemnification  for  liabilities  arising under the
Securities  Act of 1933 may be  permitted  to  directors,  officers  and persons
controlling the Registrant pursuant to the foregoing  provisions,  or otherwise,
the  Registrant  has been  informed  that in the opinion of the  Securities  and
Exchange  Commission such  indemnification is against public policy as expressed
in the Securities Act and is therefore unenforceable.

                                      II-2
<PAGE>

In the event that a claim for  indemnification  against such liabilities  (other
than the payment by the  Registrant of expenses  incurred or paid by a director,
officer of controlling  persons of the  Registrant in the successful  defense of
any  action,  suit or  proceeding)  is  asserted  by such  director,  officer or
controlling  person in connection  with the  securities  being  registered,  the
Registrant  will,  unless in the  opinion  of its  counsel  the  matter has been
settled by controlling precedent,  submit to a court of appropriate jurisdiction
the question  whether such  indemnification  by it is against  public  policy as
expressed in the Securities  Act and will be governed by the final  adjudication
of such issue.

         The undersigned Registrant hereby undertakes:

         1.       To  file, during any period in which offers or sales are being
made, a post-effective  amendment to this registration  statement to include any
material  information  with respect to the plan of  distribution  not previously
disclosed  in  the  registration  statement  or  any  material  change  to  such
information in the registration statement.

         2.       That,  for the purpose of determining  any liability under the
Securities  Act of 1933,  the  information  omitted from the form of  prospectus
filed as part of this  registration  statement  in  reliance  upon Rule 430A and
contained  in a form of  prospectus  filed by the  Registrant  pursuant  to Rule
424(b)(1) or (4) or 497(h) under the  Securities  Act of 1933 shall be deemed to
be part of this registration statement as of the time it was declared effective.

         3.       That,  for purposes of  determining  any  liability  under the
Securities Act of 1933,  each  post-effective  amendment that contains a form of
prospectus  shall be deemed to be a new registration  statement  relating to the
securities  offered  therein,  and the offering of such  securities at that time
shall be deemed to be the initial bona fide offering thereof.

         4.       For purposes of determining any liability under the Securities
Act of 1933, each filing of the  Registrant's  annual report pursuant to Section
13(a)  or  Section  15(d)  of the  Securities  Exchange  Act  of  1934  that  is
incorporated by reference in the registration  statement shall be deemed to be a
new registration  statement relating to the securities offered therein,  and the
offering of such  securities at that time shall be deemed to be the initial bona
fide offering thereof.

         5.       To  remove  from  registration  by means  of a  post-effective
amendment  any of the  securities  being  registered  which remain unsold at the
termination of the offering.

                                      II-3
<PAGE>

                                   SIGNATURES

         Pursuant to the  requirements  of the Securities Act of 1933,  VidaMed,
Inc.  certifies  that it has  reasonable  grounds to  believe  that it meets all
requirements  for  filing  on Form S-3 and has  duly  caused  this  registration
statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized,  in the City of  Fremont,  State of  California,  on this 9th day of
June 1999.

                                           VIDAMED, INC.

                                           By:    /s/  David J. Illingworth
                                           -------------------------------------
                                           David J. Illingworth
                                           President and Chief Executive Officer

                                POWER OF ATTORNEY

         KNOW ALL PERSONS BY THESE  PRESENTS,  that each person whose  signature
appears below hereby  constitutes and appoints David J.  Illingworth and Richard
D. Brounstein, as his attorney-in-fact, with full power of substitution, for him
in any and all capacities,  to sign any and all amendments to this  Registration
Statement  and to file the same,  with exhibits  thereto and other  documents in
connection  therewith,  with the  Securities  and  Exchange  Commission,  hereby
ratifying  and  confirming  our  signatures  as they may be  signed  by our said
attorney to any and all amendments to said Registration Statement.

         Pursuant  to the  requirements  of the  Securities  Act of  1933,  this
Registration  Statement  has  been  signed  by  the  following  persons  in  the
capacities and on the dates indicated.

<TABLE>
<CAPTION>
Signature                                                      Title                                    Date
- ---------                                                      -----                                    ----
<S>                                       <C>                                                          <C>
/s/  David J. Illingworth                 President and Chief Executive Officer and Director
- -------------------------------           (Principal Executive Officer)                                June 9, 1999
(David J. Illingworth)

/s/  Richard D. Brounstein                Vice President of Finance and Chief Financial Officer
- -------------------------------           (Principal Financial Officer and Principal Accounting
(Richard D. Brounstein)                   Officer)                                                     June 9, 1999


/s/  Franklin D. Brown                    Director                                                     June 9, 1999
- -------------------------------
(Franklin D. Brown)

/s/  Robert J. Erra                       Director                                                     June 9, 1999
- -------------------------------
(Robert J. Erra)

/s/  Wayne I. Roe                         Director                                                     June 9, 1999
- -------------------------------
(Wayne I. Roe)

/s/  Michael H. Spindler                  Director                                                     June 9, 1999
- -------------------------------
(Michael H. Spindler)
</TABLE>

                                      II-4
<PAGE>

                                  Exhibit Index

Exhibit Number                       Description

     4.1++          Certificate of Incorporation of Registrant.

     4.2++          Restated Bylaws of Registrant.

     4.3+++         Form of common stock Certificate.

     4.4++++        Preferred  Shares Rights  Agreement  dated as of January 27,
                    1997,   between  the  Registrant  and  American   Securities
                    Transfer  &  Trust,  Inc.,   including  the  Certificate  of
                    Designations, the Form of Rights Certificate and the Summary
                    of Rights  attached  thereto  as  Exhibit  A,  Exhibit B and
                    Exhibit C, respectively.

     4.5           Form of common stock Purchase Warrant.

     5.1            Opinion of Wilson  Sonsini  Goodrich & Rosati,  Professional
                    Corporation.

     23.1           Consent of Ernst & Young LLP, Independent Auditors.

     23.2           Consent of Wilson  Sonsini  Goodrich & Rosati,  Professional
                    Corporation (included in Exhibit 5.1).

     24.1           Power of Attorney (included on P. II-4).

- ----------

+        Filed as exhibit 99.1 to the  Registrant's  Current  Report on Form 8-K
         filed with the Commission on September 24, 1997 and incorporated herein
         by reference.

++       Filed as an exhibit to the Registrant's  Annual Report on Form 10-K for
         the fiscal  year ended  December  31, 1995 and  incorporated  herein by
         reference.

+++      Filed as an exhibit to the Registrant's  Registration Statement on Form
         S-1 (File No. 33-90746) and incorporated herein by reference.

++++     Filed as an Exhibit to the Registrant's  Registration Statement on Form
         S-8 filed with the  Commission  on January  31,  1997 and  incorporated
         herein by reference.

                                      II-5




                             STOCK PURCHASE WARRANT

                      To Purchase Shares of Common Stock of

                                  VIDAMED, INC.



         THIS CERTIFIES that, for value received,  [Name] (the  "Investor"),  is
entitled, upon the terms and subject to the conditions hereinafter set forth, at
any time on or prior to the close of  business on the date three (3) years after
the date  hereof,  but not  thereafter,  to  subscribe  for and  purchase,  from
VIDAMED, INC. a Delaware corporation (the "Company"),  [Shares] shares of Common
Stock.  The purchase price of one share of Common Stock under this Warrant shall
be $[Price] per share. The purchase price and the number of shares for which the
Warrant is exercisable shall be subject to adjustment as provided herein.

         1. Title of  Warrant.  Prior to the  expiration  hereof and  subject to
compliance  with  applicable  laws,  this Warrant and all rights  hereunder  are
transferable,  in whole or in part,  at the  office or  agency  of the  Company,
referred  to in  Section 2  hereof,  by the  holder  hereof in person or by duly
authorized attorney, upon surrender of this Warrant together with the Assignment
Form annexed hereto properly endorsed.

         2. Exercise of Warrant.

                  (a)  The  purchase  rights  represented  by this  Warrant  are
exercisable  by the registered  holder hereof,  in whole or in part, at any time
before the close of business on the date three (3) years after the date  hereof,
by delivery of the Notice of Exercise  form annexed  hereto duly executed at the
office of the Company, in Fremont, California (or such other office or agency of
the Company as it may  designate by notice in writing to the  registered  holder
hereof at the address of such holder appearing on the books of the Company), and
upon payment of the purchase price of the shares  thereby  purchased (by cash or
by check or bank  draft  payable  to the order of the  Company);  whereupon  the
holder of this Warrant shall be entitled to receive a certificate for the number
of shares of Common Stock so purchased.  The Company  agrees that if at the time
of the  surrender  of this  Warrant  and  purchase  the holder  hereof  shall be
entitled to  exercise  this  Warrant,  the shares so  purchased  shall be and be
deemed to be issued to such holder as the record  owner of such shares as of the
close of business on the date on which this Warrant shall have been exercised as
aforesaid.  If this Warrant  should be exercised in part only, the Issuer shall,
upon surrender of this Warrant, execute and deliver a new Warrant evidencing the
rights of the  holder  hereof to  purchase  the  balance of the  Warrant  Shares
purchasable hereunder.

<PAGE>

                  (b) In lieu of the cash  payment set forth in  paragraph  2(a)
above,  the Holder  shall have the right  ("Conversion  Right") to convert  this
Warrant in its entirety (without payment of any kind) into that number of shares
of Common  Stock equal to the  quotient  obtained by dividing  the Net Value (as
defined below) of the Shares  issuable upon exercise of this Warrant by the Fair
Market Value (as defined  below) of one share of Common  Stock.  As used herein,
(A) the Net Value of the Shares  means the  aggregate  Fair Market  Value of the
shares of Common Stock  subject to this  Warrant  minus the  aggregate  exercise
price; and (B) the Fair Market Value of one share of Common Stock means:

                           (i) if the exercise occurs at a time during which the
Company's  Common  Stock is traded on a national  securities  exchange or on the
Nasdaq National Market or the Nasdaq Small Cap Market,  the Fair Market Value of
one share of Common Stock means the average last  reported or closing sale price
for the  Company's  Common  Stock on such  exchange  or market  for the ten (10)
trading days ending one business day before the exercise of this Warrant;

                           (ii) if the exercise is in connection  with a merger,
sale of assets or other reorganization  transaction as described in Section 9(a)
below,  the Fair  Market  Value of one  share of  Common  Stock  means the value
received  by  the  holders  of the  Company's  Common  Stock  pursuant  to  such
transaction; and

                           (iii) in all other  cases,  the Fair Market  Value of
one share of Common  Stock shall be  determined  in good faith by the  Company's
Board of Directors.

                  (c)  Certificates  for  shares  purchased  hereunder  shall be
delivered  to the holder  hereof  promptly  after this  Warrant  shall have been
exercised as aforesaid.  The Company  covenants  that all shares of Common Stock
which may be issued upon the  exercise  of rights  represented  by this  Warrant
will, upon exercise of the rights represented by this Warrant, be fully paid and
nonassessable and free from all taxes, liens and charges in respect of the issue
thereof (other than taxes in respect of any transfer occurring contemporaneously
with such issue).

         3. No  Fractional  Shares  or  Scrip.  No  fractional  shares  or scrip
representing  fractional  shares  shall  be  issued  upon the  exercise  of this
Warrant. With respect to any fraction of a share called for upon the exercise of
this  Warrant,  an amount  equal to such  fraction  multiplied  by the then Fair
Market Value shall be paid in cash to the holder of this Warrant.

         4. Charges, Taxes and Expenses.  Issuance of certificates for shares of
Common Stock upon the exercise of this Warrant  shall be made without  charge to
the holder hereof for any issue or transfer tax or other  incidental  expense in
respect of the  issuance of such  certificate,  all of which taxes and  expenses
shall be paid by the Company,  and such certificates shall be issued in the name
of the holder of this Warrant or in such name or names as may be directed by the
holder of this Warrant;  provided,  however,  that in the event certificates for
shares of Common  Stock  are to be issued in a name  other  than the name of the
holder of this  Warrant,  this Warrant when  surrendered  for exercise  shall be
accompanied by the Assignment  Form attached  hereto duly executed by the holder
hereof.

                                       2
<PAGE>

         5. No Rights as Shareholders.  This Warrant does not entitle the holder
hereof to any voting  rights or other  rights as a  stockholder  of the  Company
prior to the exercise thereof.

         6.  Exchange  and Registry of Warrant.  This  Warrant is  exchangeable,
without  charge,  upon the  surrender  hereof  by the  registered  holder at the
above-mentioned office or agency of the Company, for a new Warrant of like tenor
and dated as of such exchange.

         The Company shall  maintain at the  above-mentioned  office or agency a
registry showing the name and address of the registered  holder of this Warrant.
This  Warrant  may  be  surrendered  for  exchange,  transfer  or  exercise,  in
accordance  with its terms,  at such  office or agency of the  Company,  and the
Company  shall be entitled to rely in all respects,  prior to written  notice to
the contrary, upon such registry.

         7. Loss, Theft,  Destruction or Mutilation of Warrant.  Upon receipt by
the  Company  of  evidence  reasonably  satisfactory  to it of the loss,  theft,
destruction  or  mutilation  of this  Warrant,  and in case of  loss,  theft  or
destruction,  of  indemnity  or  security  reasonably  satisfactory  to it,  and
cancellation of this Warrant, if mutilated,  the Company will make and deliver a
new  Warrant  of like tenor and dated as of such  cancellation,  in lieu of this
Warrant.

         8. Saturdays,  Sundays, Holidays, etc. If the last or appointed day for
the  taking of any action or the  expiration  of any right  required  or granted
herein  shall be a Saturday or a Sunday or shall be a legal  holiday,  then such
action may be taken or such right may be  exercised on the next  succeeding  day
not a legal holiday.

         9. Early Termination and Registration Statement Adjustments.

                  (a) Merger,  Sale of Assets, etc. In case of any consolidation
of the Company with, or merger of the Company into, any other corporation (other
than  a  consolidation  or  merger  in  which  the  Company  is  the  continuing
corporation and in which no change occurs in its outstanding  Common Stock),  or
in case of any sale or transfer of all or substantially all of the assets of the
Company,  or in the case of any statutory  exchange of  securities  with another
corporation  (including any exchange  effected in connection  with a merger of a
third  corporation  into the Company,  except where the Company is the surviving
entity and no change occurs in its  outstanding  Common Stock),  the corporation
formed by such consolidation or the corporation resulting from or surviving such
merger or the corporation which shall have acquired such assets or securities of
the  Company,  as the case may be,  shall  execute  and  deliver  to the  Holder
simultaneously  therewith a new Warrant,  satisfactory  in form and substance to
the Holder,  together  with such other  documents  as the Holder may  reasonably
request,  entitling the Holder  thereof to receive upon exercise of such Warrant
the kind and  amount  of  shares of stock  and  other  securities  and  property
receivable  upon such  consolidation,  merger,  sale,  transfer,  or exchange of
securities,  or upon the dissolution following such sale or other transfer, by a
holder of the number of shares of Common Stock purchasable upon exercise of this
Warrant  immediately prior to such consolidation,  merger,  sale,  transfer,  or
exchange.  Such new  Warrant  shall  contain  the same  basic  other  terms  and
conditions as this Warrant and shall provide for adjustments  which,  for events
subsequent to the effective date of such written instrument,  shall be as nearly
equivalent as may be practicable to the adjustments provided for in this Section
9.  The  above  provisions  of this  paragraph  (a)  shall  similarly  apply  to
successive

                                       3
<PAGE>

consolidations,  mergers,  exchanges,  sales or other transfers  covered hereby.
Notwithstanding  the  foregoing,  in the event the  consideration  to be paid to
holders of Company  capital stock in any  transaction of the nature  referred to
above  in  this  Section  9(a)  (a  "Transaction")  consists  of  cash  or  cash
equivalents,  then, provided that the Company shall have given the holder hereof
the notice  required by Section 10, this Warrant shall, to the extent it has not
been  exercised by the effective  date of such  Transaction,  terminate upon the
completion of such Transaction.

                  (b)  Reclassification,  etc. If the Company at any time shall,
by  subdivision,  combination  or  reclassification  of securities or otherwise,
change any of the securities to which  purchase  rights under this Warrant exist
into the same or a different number of securities of any class or classes,  this
Warrant shall thereafter  represent the right to acquire such number and kind of
securities as would have been issuable as the result of such change with respect
to the securities  which were subject to the purchase  rights under this Warrant
immediately prior to such subdivision,  combination,  reclassification  or other
change.  If shares of the Company's Common Stock are subdivided or combined into
a greater or smaller number of shares of Common Stock,  the purchase price under
this Warrant shall be  proportionately  reduced in case of subdivision of shares
or proportionately increased in the case of combination of shares, in both cases
by the ratio which the total number of shares of Common Stock to be  outstanding
immediately after such event bears to the total number of shares of Common Stock
outstanding immediately prior to such event.

                  (c)  Cash  Distributions.  Except  as  set  forth  herein,  no
adjustment on account of cash  dividends on the Company's  Common Stock or other
securities  purchasable  hereunder will be made to the purchase price under this
Warrant.

                  (d) Authorized  Shares.  The Company covenants that during the
period the Warrant is  outstanding,  it will  reserve  from its  authorized  and
unissued Common Stock a sufficient  number of shares to provide for the issuance
of Common Stock upon the exercise of any purchase rights under this Warrant. The
Company  further  covenants  that its issuance of this Warrant shall  constitute
full authority to its officers who are charged with the duty of executing  stock
certificates to execute and issue the necessary  certificates  for shares of the
Company's  Common  Stock upon the  exercise of the  purchase  rights  under this
Warrant.  The  Company  further  covenants  and agrees (i) that it will not,  by
amendment  of  its  Certificate  of  Incorporation  or  through  reorganization,
consolidation,  merger, dissolution or sale of assets, or by any other voluntary
act,  avoid  or seek to  avoid  the  observation  or  performance  of any of the
covenants,  stipulations or conditions to be observed or performed  hereunder by
the Company, (ii) promptly to take such action as may be required of the Company
to  permit  the  Holder  to  exercise  this  Warrant  and the  Company  duly and
effectively to issue shares of its Common Stock or other  securities as provided
herein upon the exercise  hereof and (iii) promptly to take all action  required
or provided herein to protect the rights of the Holder granted hereunder against
dilution.

                  (e) If the  Company  declares a dividend on Common  Stock,  or
makes  a  distribution  to  holders  of  Common  Stock,  and  such  dividend  or
distribution is payable or made in Common Stock or securities  convertible  into
or  exchangeable  for  Common  Stock,  or rights  to  purchase  Common  Stock or
securities  convertible  into or  exchangeable  for Common Stock,  the number of
shares  of Common  Stock  for  which  this  Warrant  may be  exercised  shall be
increased,  as of the record date for determining  which holders of Common Stock
shall be entitled to receive such dividend or

                                       4
<PAGE>


distribution,  in proportion to the increase in the number of outstanding shares
(and shares of Common Stock  issuable  upon  conversion  of all such  securities
convertible  into Common  Stock) of Common Stock as a result of such dividend or
distribution,  and the  Exercise  Price shall be adjusted so that the  aggregate
amount  payable for the purchase of all the Warrant  Shares  issuable  hereunder
immediately after the record date for such dividend or distribution  shall equal
the aggregate amount so payable  immediately before such record date.

                  (f) If the Company  declares a dividend on Common Stock (other
than a dividend  covered by subsection  (g) above) or  distributes to holders of
its Common Stock,  other than as part of its  dissolution  or liquidation or the
winding up of its  affairs,  any shares of its capital  stock,  any  evidence of
indebtedness  or any cash or other of its assets  (other  than  Common  Stock or
securities  convertible into or exchangeable for Common Stock), the Holder shall
receive notice of such event as set forth in Section 11 below.

                  (g) If the Company shall, at any time before the expiration of
this Warrant,  sell all or  substantially  all of its assets and  distribute the
proceeds thereof to the Company's stockholders,  the Holder shall, upon exercise
of this Warrant have the right to receive, in lieu of the shares of Common Stock
of the Company that the Holder  otherwise  would have been  entitled to receive,
the same kind and amount of assets as would  have been  issued,  distributed  or
paid to the Holder  upon any such  distribution  with  respect to such shares of
Common  Stock of the  Company  had the Holder  been the holder of record of such
shares of Common Stock  receivable upon exercise of this Warrant on the date for
determining  those  entitled  to  receive  any  such  distribution.  If any such
distribution  results in any cash  distribution  in excess of the Exercise Price
provided by this Warrant for the shares of Common Stock receivable upon exercise
of this Warrant,  the Holder may, at the Holder's option,  exercise this Warrant
without  making  payment of the  Exercise  Price and, in such case,  the Company
shall, upon distribution to the Holder, consider the Exercise Price to have been
paid in full and, in making  settlement to the Holder,  shall obtain  receipt of
the Exercise  Price by  deducting an amount equal to the Exercise  Price for the
shares of Common Stock  receivable upon exercise of this Warrant from the amount
payable  to  the  Holder.  Notwithstanding  the  foregoing,  in  the  event  the
consideration  to be paid to holders of Company capital stock in any transaction
of  the  nature  referred  to  above  in  this  Section  9(i)  (an  "Asset  Sale
Transaction") consists of cash or cash equivalents and the consideration payable
per  share of  Common  Stock of the  Company  is less  than the  Exercise  Price
hereunder,  then,  provided  that the Company shall have given the holder hereof
the notice  required by Section 10, this Warrant shall, to the extent it has not
been  exercised by the effective  date of such  Transaction,  terminate upon the
completion of such Transaction.

                  (h) The term "Common Stock" shall mean the Common Stock of the
Company  as the same  exists  as of the date  hereof,  or as such  stock  may be
constituted  from time to time,  except that for the purpose of this  Section 9,
the term  "Common  Stock"  shall  include  any stock of any class of the Company
which has no  preference  in respect of dividends  or of amounts  payable in the
event of any voluntary or involuntary liquidation,  dissolution or winding up of
the Company and which is not subject to redemption by the Company.

                  (i)  Whenever  the  number of Warrant  Shares or the  Exercise
Price shall be adjusted as  required by the  provisions  of this  Section 9, the
Company  forthwith  shall file in the custody of its  secretary  or an assistant
secretary, at its principal office, and furnish to each Holder hereof, a

                                       5
<PAGE>

certificate prepared by its Chief Financial Officer, showing the adjusted number
of  Warrant  Shares  and the  adjusted  Exercise  Price  and  setting  forth  in
reasonable detail the circumstances requiring the adjustments.

                  (j) No adjustment in the Exercise Price in accordance with the
provisions of this Section 9 need be made if such  adjustment  would amount to a
change in such  Exercise  Price of less than $.01;  provided  however,  that the
amount by which any  adjustment is not made by reason of the  provisions of this
paragraph (l) shall be carried forward and taken into account at the time of any
subsequent adjustment in the Exercise Price.

                  (k) If an  adjustment  is made  under  this  Section 9 and the
event to which the adjustment  relates does not occur,  then any  adjustments in
accordance with this Section 9 shall be readjusted to the Exercise Price and the
number of Warrant Shares which would be in effect had the earlier adjustment not
been made.

         10. Notice of Adjustment. So long as this Warrant shall be outstanding,
(a) if the Company shall  propose to pay any dividends or make any  distribution
upon the Common  Stock,  or (b) if the  Company  shall  offer  generally  to the
holders of Common  Stock the right to subscribe to or purchase any shares of any
class of Common Stock or securities  convertible  into Common Stock or any other
similar rights, or (c) if there shall be any proposed capital  reorganization of
the Company in which the Company is not the surviving  entity,  recapitalization
of the capital stock of the Company, consolidation or merger of the Company with
or  into  another  corporation,   sale,  lease  or  other  transfer  of  all  or
substantially  all of the property  and assets of the  Company,  or voluntary or
involuntary dissolution, liquidation or winding up of the Company, or (d) if the
Company shall give to its stockholders any notice, report or other communication
respecting any significant or special action or event,  then in such event,  the
Company  shall give to the Holder,  at least ten (10) days prior to the relevant
date described  below, a notice  containing a description of the proposed action
or event  and  stating  the  date or  expected  date on  which a  record  of the
Company's stockholders is to be taken for any of the foregoing purposes, and the
date or expected date on which any such  dividend,  distribution,  subscription,
reclassification,    reorganization,    consolidation,    combination,   merger,
conveyance, sale, lease or transfer,  dissolution,  liquidation or winding up is
to take place and the date or expected date, if any is to be fixed,  as of which
the holders of Common Stock of record shall be entitled to exchange their shares
of Common Stock for securities or other property deliverable upon such event.


         11.  Notice.  Any notice to be given or to be served  upon any party in
connection  with the Warrant  must be in writing and will be deemed to have been
given and received upon confirmed receipt, if sent by facsimile, or two (2) days
after it has been  submitted  for delivery by Federal  Express or an  equivalent
carrier,  charges  prepaid  and  addressed  to the  following  addresses  with a
confirmation of delivery:

                                       6
<PAGE>

         If to the Company, to:

         VidaMed, Inc.
         46107 Landing Parkway
         Fremont, California 94538
         Attn.:  Richard Brounstein
         Telephone: (510) 492-4940
         Facsimile:  (510) 492-4999

         If to the Holder, to:

         Address set forth in Exhibit A to Purchase Agreement

         Any party may, at any time by giving written notice to the other party,
designate any other address in substitution of an address  established  pursuant
to the foregoing to which such notice will be given.

         12. Miscellaneous.

                  (a)  Issue  Date.  The  provisions  of this  Warrant  shall be
construed  and shall be given effect in all respect as if it had been issued and
delivered by the Company on the date hereof.  This Warrant shall be binding upon
any successors or assigns of the Company.

                  (b)  Restrictions.  The holder  hereof  acknowledges  that the
Common Stock  acquired  upon the exercise of this Warrant may have  restrictions
upon its resale imposed by state and federal securities laws.

                  (c)  Governing  Law. This  Agreement  shall be governed in all
respects by and construed in  accordance  with the laws of the State of Delaware
without any regard to conflicts of laws principles.

                  (d) Successors and Assigns.  Except as otherwise  contemplated
hereby,  this  Warrant  shall be  binding  upon and inure to the  benefit of any
successors and assigns of the Company.

                  [remainder of page intentionally left blank]

                                       7
<PAGE>

         IN  WITNESS  WHEREOF,  VIDAMED,  INC.  has  caused  this  Warrant to be
executed by its officers thereunto duly authorized.

         Dated: [Date]

                                             VIDAMED, INC.



                                        By:  ___________________________________
                                             Richard Brounstein,
                                             Vice President and Chief
                                             Financial Officer


                                       8
<PAGE>

                               NOTICE OF EXERCISE



         To:  VIDAMED, INC.

         (1) The undersigned  hereby elects to purchase  ____________  shares of
Common Stock of VIDAMED, INC. pursuant to the terms of the attached Warrant, and

                  ____ tenders herewith payment of the purchase price in full.

                  ____ is electing  to convert  the Warrant on a "net  exercise"
basis in accordance with Section 2(b) hereof.

                    [please check one of the foregoing lines]

         (2) Please issue a certificate of certificates representing said shares
of  Common  Stock in the name of the  undersigned  or in such  other  name as is
specified below:

                         _______________________________________________
                                     (Name)

                         ________________________________________________


                         ________________________________________________
                                    (Address)

         (3) The  undersigned  represents  that the  aforesaid  shares of Common
Stock are being acquired for the account of the  undersigned  for investment and
not with a view to, or for resale in connection with, the  distribution  thereof
and that the undersigned  has no present  intention of distributing or reselling
such shares;  provided,  that such representation  shall not be required at such
time as the shares of Common Stock  underlying this Warrant are registered under
the Securities Act of 1933.



         _______________________________          ______________________________
         (Date)                                   (Signature)

<PAGE>

                                 ASSIGNMENT FORM

                    (To assign the foregoing warrant, execute
                   this form and supply required information.
                    Do not use this form to purchase shares.)



         FOR VALUE  RECEIVED,  the  foregoing  Warrant and all rights  evidenced
thereby are hereby assigned to

         _______________________________________________________________________
                                 (Please Print)

         whose address is ______________________________________________________
                                 (Please Print)

         _______________________________________________________________________

                                          Dated:_______________________, 19____.

                              Holder's Signature:_______________________________

                              Holder's Address:_________________________________

                              __________________________________________________

         Signature Guaranteed: _________________________________________________

NOTE: The signature to this  Assignment Form must correspond with the name as it
appears on the face of the Warrant,  without  alteration or  enlargement  or any
change whatever, and must be guaranteed by a bank or trust company.  Officers of
corporations  and those acting in a fiduciary or other  representative  capacity
should file proper evidence of authority to assign the foregoing Warrant.



                   OPINION OF WILSON SONSINI GOODRICH & ROSATI

                                                                     Exhibit 5.1

                                  June 9, 1999

VidaMed, Inc.
46107 Landing Parkway
Fremont, California 94538

         Re: VidaMed, Inc. (the "Company") Registration Statement on Form S-3

Ladies and Gentlemen:

         We have  examined  the  Registration  Statement on Form S-3 to be filed
with the Securities and Exchange Commission (the "Registration  Statement"),  in
connection with the  registration  under the Securities Act of 1933, as amended,
of a shelf offering of (i) 6,000,000 shares of the Company's common stock, $00.1
par value per share (the "Shares"),  (ii) 1,500,000  warrants to purchase common
stock of the Company (the "Shelf  Warrants"),  and (iii) 1,500,000 shares of the
Company's common stock, $.001 par value per share, issuable upon exercise of the
Shelf Warrants (the "Shelf Warrant Shares").  As your counsel,  we have examined
the proceedings proposed to be taken in connection with the sale and issuance of
the above-referenced securities.

         It is our opinion  that the Shares,  the Shelf  Warrants  and the Shelf
Warrant  Shares,  when  issued  and  sold  in  the  manner  referred  to in  the
Registration  Statement,  will be legally  and  validly  issued,  fully paid and
nonassessable.

         We consent to the use of this opinion as an exhibit to the Registration
Statement,  and further consent to the use of our name wherever appearing in the
Registration  Statement,  including the Prospectus  constituting a part thereof,
and any amendment thereto.

                                Very truly yours,

                                WILSON, SONSINI, GOODRICH & ROSATI
                                Professional Corporation

                                /s/ WILSON SONSINI GOODRICH & ROSATI


                                      II-6


               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

         We consent to the reference to our firm under the caption  "Experts" in
the Registration  Statement (Form S-3) and related  Prospectus of VidaMed,  Inc.
for the  registration  of  7,500,000  shares of its common  stock and  1,500,000
warrants  to  purchase  shares  of  common  stock  and to the  incorporation  by
reference  therein of our report  dated  January 15,  1999,  with respect to the
consolidated  financial statements and schedule of VidaMed, Inc. included in its
Annual Report (Form 10-K) for the year ended  December 31, 1998,  filed with the
Securities and Exchange Commission.


                                                ERNST & YOUNG LLP

                                                /s/  ERNST & YOUNG LLP

Palo Alto, California
June 10, 1999

                                      II-7


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