UNITED STATES
               SECURITIES AND EXCHANGE COMMISSION
                     Washington, D.C. 20549

         _______________________________________________

                          SCHEDULE 13D

            Under the Securities Exchange Act of 1934

                         MEDSCAPE, INC.
                        (Name of Issuer)

             Common Stock, Par Value $.01 per share
                 (Title of Class of Securities)

                          585046-100-5
                         (CUSIP Number)

                       Sumner M. Redstone
                    National Amusements, Inc.
                         200 Elm Street
                   Dedham, Massachusetts 02026
                    Telephone: (781) 461-1600

                         with a copy to:

                    Michael D. Fricklas, Esq.
                           Viacom Inc.
                          1515 Broadway
                    New York, New York 10036
                    Telephone: (212) 258-6000
             (Name, Address and Telephone Number of
    Person Authorized to Receive Notices and Communications)

                           May 4, 2000
     (Date of Event which Requires Filing of this Statement)


    _________________________________________________________

If the filing person has previously filed a statement on Schedule
13G to report the acquisition which is the subject of this
Schedule 13D, and is filing this schedule because of Rule 13d-
1(b)(3) or (4), check the following box / /.

Check the following box if a fee is being paid with this
statement / /.














CUSIP No. 585046-100-5

(1)  Name of Reporting Person
     S.S. or I.R.S. Identification No. of Above Person

                    SUMNER M. REDSTONE
                    S.S. No.
- ---------------------------------------------------------------
(2)  Check the Appropriate Box if a Member of Group (See
      Instructions)
/  / (a)
- ---------------------------------------------------------------
/  / (b)
- ---------------------------------------------------------------
(3)  SEC Use Only
- ---------------------------------------------------------------
(4)  Sources of Funds (See Instructions)             N/A
- ---------------------------------------------------------------
(5)  Check if Disclosure of Legal Proceedings is Required
     Pursuant to Items 2(d) or 2(e).
- ---------------------------------------------------------------
(6)  Citizenship or Place of Organization
               United States
- ---------------------------------------------------------------

Number of           (7)  Sole Voting Power
  Shares		---------------------------------------
Beneficially        (8)  Shared Voting Power        14,538,368
 Owned by		---------------------------------------
   Each             (9)  Sole Dispositive Power
Reporting		---------------------------------------
  Person            (10) Shared Dispositive Power   14,538,368
  With
- ---------------------------------------------------------------
(11) Aggregate Amount Beneficially Owned by Each Reporting
                    14,538,368
- ---------------------------------------------------------------
(12) Check if the Aggregate Amount in Row (11) Excludes Certain
     Shares (See Instructions)
- ---------------------------------------------------------------
(13) Percent of Class Represented by Amount in Row (11)
                       32.4%
- ---------------------------------------------------------------
(14) Type of Reporting Person (See Instructions)
                       IN
- ---------------------------------------------------------------









 CUSIP No.     585046-100-5

(1)  Name of Reporting Person
     S.S. or I.R.S. Identification No. of Above Person

                    VIACOM
                    I.R.S No. 04-2949533
- ---------------------------------------------------------------
(2)  Check the Appropriate Box if a Member of Group (See
     Instructions)
/  / (a)
- ---------------------------------------------------------------
/  / (b)
- ---------------------------------------------------------------
(3)  SEC Use Only
- ---------------------------------------------------------------
(4)  Sources of Funds (See Instructions)         N/A
- ---------------------------------------------------------------
(5)  Check if Disclosure of Legal Proceedings is Required
     Pursuant to Items 2(d) or 2(e).
- ---------------------------------------------------------------
(6)  Citizenship or Place of Organization       Delaware
- --------------------------------------------------------------
Number of           (7)  Sole Voting Power
  Shares		---------------------------------------
Beneficially        (8)  Shared Voting Power       14,538,368
 Owned by		---------------------------------------
   Each             (9)  Sole Dispositive Power
Reporting		---------------------------------------
  Person            (10) Shared Dispositive Power  14,538,368
  With
- ---------------------------------------------------------------
(11) Aggregate Amount Beneficially Owned by Each Reporting
                    14,538,368
- ---------------------------------------------------------------
(12) Check if the Aggregate Amount in Row (11) Excludes Certain
     Shares (See Instructions)
- ---------------------------------------------------------------
(13) Percent of Class Represented by Amount in Row (11)
                         32.4%
- ---------------------------------------------------------------
(14) Type of Reporting Person (See Instructions)
                           CO
- ---------------------------------------------------------------







Item 1.   Security and Issuer.

          The class of equity securities to which this Statement
on Schedule 13D relates is the Common Stock, $.01 par value per
share (the "Common Shares"), of Medscape, Inc. (the "Issuer"), a
Delaware corporation, with its principal executive office located
at 134 West 29th Street, New York, NY 10001.

Item 2.     Identity and Background.

          This Statement is filed by Mr. Sumner M. Redstone,
National Amusements, Inc. ("NAI"), NAIRI, Inc. ("NAIRI"), and
Viacom Inc. ("Viacom") (collectively, the "Reporting Persons").

          Viacom, a Delaware corporation, has its principal
executive offices at 1515 Broadway, New York, New York 10036 and
is a diversified entertainment and communications company.  At
May 12, 2000, approximately 68% of Viacom's voting Class A Common
Stock, par value $.01 per share, and approximately 13% (on a
combined basis) of Viacom's Class A Common Stock and non-voting
Class B Common Stock, par value $.01 per share, was owned by
NAIRI.

          NAIRI, a Rhode Island corporation, has its principal
office at 200 Elm Street, Dedham, Massachusetts 02026 and is a
company owning and operating movie theaters in the United States
whose main asset is its shares of Viacom Class A Common Stock and
Class B Common Stock.

          NAI, a Maryland corporation, has its principal office
at 200 Elm Street, Dedham, Massachusetts 02026.  NAI's principal
businesses are owning and operating movie theaters in the United
States, United Kingdom and South America and holding the common
stock of NAIRI.  66-2/3% of the issued and outstanding shares of
capital stock of NAI are beneficially owned by Mr. Sumner M.
Redstone, as trustee of a trust owning such shares.

          Sumner M. Redstone is an individual whose business
address is c/o National Amusements, Inc., 200 Elm Street, Dedham,
Massachusetts 02026.  Mr. Redstone's principal occupation is
Chairman of the Board and Chief Executive Officer of NAI,
Chairman and President of NAIRI, and Chairman of the Board and
Chief Executive Officer of Viacom Inc.

          The executive officers and directors of CBSBI, Viacom,
NAIRI and NAI are set forth on Schedules I through III attached
hereto, containing the following information with respect to each
such person:

          (a)  Name;

          (b)  Residence or business address; and

          (c)  Present principal occupation or employment and the
               name, principal business and address of any
               corporation or other organization in which such
               employment is conducted.

          During the last five years, neither of the Reporting
Persons nor any person named in any of Schedules I through III
attached hereto has been (a) convicted in a criminal proceeding
(excluding traffic violations or similar misdemeanors) or (b) a
party to a civil proceeding of a judicial or administrative body
of competent jurisdiction and as a result of such proceeding was
or is subject to a judgment, decree or final order enjoining
future violations of, or prohibiting or mandating activities
subject to, federal or state securities laws or finding any
violation with respect to such laws.

          Except for Jan Leschly, who is a Danish citizen, all of
the directors of Viacom, NAIRI and NAI, including Mr. Sumner M.
Redstone, are citizens of the United States.




Item 3.   Source and Amount of Funds or Other Consideration.

          The Issuer's Common Shares were acquired by the
Reporting Persons pursuant to the merger of CBS Corporation
("CBS"), immediate prior owner of the Common Shares and Special
Preferred Stock (as defined in Item 5 below), with and into
Viacom on May 4, 2000.

Item 4.   Purpose of Transaction.

          The Issuer's Common Shares were acquired by the
Reporting Persons pursuant to the merger of CBS with and into
Viacom on May 4, 2000.  The Reporting Persons may, at any time
and from time to time, purchase additional Common Shares of the
Issuer and may dispose of any and all Common Shares of the Issuer
held by them.  Notwithstanding the foregoing, the Reporting
Persons have no current plan or proposal which relates to, or
would result in, any of the actions enumerated in subparagraphs
(a) through (j) of Item 4 of Schedule 13D.

Item 5.   Interest in Securities of the Issuer.

          (a) and (b) Viacom is currently the beneficial owner,
          with shared dispositive and voting power, of 14,538,368
          Common Shares, or approximately 32.4%, of the Issuer's
          issued and outstanding Common Shares (based on the
          number of Common Shares that were reported by the
          Issuer to be issued and outstanding as of March 31,
          2000).

          NAIRI is currently the beneficial owner, with shared
          dispositive and voting power, of 14,538,368 Common
          Shares, or approximately 32.4%, of the Issuer's issued
          and outstanding Common Shares (based on the number of
          Common Shares that were reported by the Issuer to be
          issued and outstanding as of March 31, 2000).

          NAI is currently the beneficial owner, with shared
          dispositive and voting power, of 14,538,368 Common
          Shares, or approximately 32.4%, of the Issuer's issued
          and outstanding Common Shares (based on the number of
          Common Shares that were reported by the Issuer to be
          issued and outstanding as of March 31, 2000).

          As a result of his stock ownership in NAI, Mr. Sumner
          M. Redstone is deemed the beneficial owner of
          14,538,368 Common Shares of the Issuer or approximately
          32.4% of the Issuer's issued and outstanding Common
          Shares of the Issuer (based on the number of Common
          Shares that were reported by the Issuer to be issued
          and outstanding as of March 31, 2000).

          (c) The Issuer's Common Shares and Special Preferred
          Stock were acquired by the Reporting Persons pursuant
          to the merger of CBS, immediate prior owner of the
          Common Shares and Special Preferred Stock, with and
          into Viacom on May 4, 2000.

          (d)  None.

          (e)  N/A

Item 6.   Contracts, Arrangements, Understandings or Relationships
          with Respect to Securities of the Issuer.

          None of the Reporting Persons have entered into, or
amended any existing, agreement with respect to the Common Shares
or other securities of the Issuer since the prior statement on
Schedule 13D, or amendment thereto, that was filed by certain of
the Reporting Persons or any predecessor thereof.  Viacom, as
successor by merger to CBS, has assumed all rights and
obligations of CBS.





                           Signatures


     After reasonable inquiry and to the best of our knowledge
and belief, we certify that the information set forth in this
statement is true, complete and correct. Pursuant to Rule 13d-
1(f)(1), each of the undersigned agrees that this statement is
filed on behalf of each of us.



May 15, 2000                            /s/ Sumner M. Redstone
					----------------------
                                        Sumner M. Redstone,
                                        Individually



                                   National Amusements, Inc.


                                   By:  /s/ Sumner M. Redstone
					------------------------
                                        Sumner M. Redstone,
                                        Chairman and Chief
 					Executive Officer


                                   NAIRI, Inc.


                                   By:  /s/ Sumner M. Redstone
					-----------------------
                                        Sumner M. Redstone,
                                        Chairman and President


                                   Viacom Inc.


                                   By:  /s/Michael D. Fricklas
					----------------------
                                        Michael D. Fricklas
                                        Senior Vice President,
                                        General Counsel and Secretary





                           SCHEDULE I

                           VIACOM INC.
- --------------------------------------------------------------------
                         EXECUTIVE OFFICERS
- ---------------------------------------------------------------------

                                                    Name and Address
                                                   of Corporation or
              Business or         Principal        Other Organization
  Name     Residence Address    Occupation or      in Which Employed
                                  Employment
- ---------------------------------------------------------------------

Sumner M.  Viacom Inc.        Chairman of the     National Amusements,
Redstone*  1515 Broadway      Board and Chief     Inc.
           New York, NY       Executive Officer   200 Elm Street
           10036              of Viacom Inc.;     Dedham, MA  02026
                              Chairman of the
                              Board and Chief
                              Executive Officer
                              of National
                              Amusements, Inc.;
                              President and
                              Chief Executive
                              Officer of Viacom
                              International Inc.

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

Mel        Viacom Inc.        President and       Chairman, President
Karmazin*  1515 Broadway      Chief Operating     and Chief Executive
           New York, NY       Officer Viacom      Officer of Infinity
           10036              Inc. and Viacom     Broadcasting
                              International Inc.  Corporation
- ---------------------------------------------------------------------

Michael    Viacom Inc.        Sr. VP, General     Viacom
D.         1515 Broadway      Counsel and         International Inc.
Fricklas   New York, NY       Secretary of        1515 Broadway
           10036              Viacom Inc. and of  New York, NY  10036
                              Viacom
                              International Inc.
- ---------------------------------------------------------------------

Susan C.   Viacom Inc.        Vice President,     Viacom
Gordon     1515 Broadway      Controller, Chief   International
           New York, NY       Accounting Officer  Inc.
           10036              of Viacom Inc. and  1515 Broadway
                              Viacom              New York, NY 10036
                              International Inc.
- ---------------------------------------------------------------------

William    Viacom Inc.        Sr. VP, Human       Viacom
A. Roskin  1515 Broadway      Resources and       International Inc.
           New York, NY       Administration of   1515 Broadway
           10036              Viacom Inc. and     New York, NY  10036
                              Viacom
                              International Inc.
- ---------------------------------------------------------------------

Fredric    Viacom Inc.        Sr. VP, Chief       Viacom
Reynolds   1515 Broadway      Financial Officer   International Inc.
           New York, NY 10    of Viacom Inc. and  1515 Broadway
                              Viacom              New York, NY  10036
                              International Inc.
- ---------------------------------------------------------------------

*Also a Director





                           SCHEDULE I
                           (continued)
- ---------------------------------------------------------------------
                              DIRECTORS
- ---------------------------------------------------------------------

George S.   Winer & Abrams    Attorney             Winer & Abrams
Abrams      60 State Street                        60 State Street
            Boston, MA 02109                       Boston, MA  02109
- ---------------------------------------------------------------------

George H.   AKAMI             Chairman and Chief
Conrades    Technologies      Executive Officer
            201 Broadway      of
            Cambridge, MA     AKAMI Technologies
            02139
- ---------------------------------------------------------------------

Philippe    121 East 65th     Director of Viacom
P. Dauman   Street            Inc. and National
            New York, NY      Amusements, Inc.
            10021
- ---------------------------------------------------------------------

Thomas E.   243 Cleft Road    Director of Viacom
Dooley      Mill Neck, NY     Inc.
            11937
- ---------------------------------------------------------------------

William H.  UNCF              President and
Gray III    8260 Willow Oaks  Chief Executive
            Corporate Drive   Officer of The
            Fairfax, VA       College Fund/UNCF
            22031
- ---------------------------------------------------------------------

Jan         SmithKline        Chief Executive
Leschly     Beecham           (Retired) of
            P.O. Box 7929     SmithKline Beecham
            Philadelphia, PA
            19101
- ---------------------------------------------------------------------

David T.    Orion Safety      Chairman and Chief
McLaughlin  Products          Executive Officer
            P.O. Box 2047     of
            Easton, MD 21601  Orion Safety
                              Products
- ---------------------------------------------------------------------

Ken Miller  Credit Suisse     Vice Chairman of     Credit Suisse
            First Boston      C.S. First Boston    First Boston
            Corporation                            Corporation
            11 Madison                             11 Madison Avenue
            Avenue - 22nd                          22nd Floor
            Floor                                  New York, NY
            New York, NY                           10010
            10010
- ---------------------------------------------------------------------

Leslie      Viacom Inc.       President and        CBS Television
Moonves     1515 Broadway     Chief Executive      7800 Beverly Blvd.
            New York, NY      Officer of CBS       Los Angeles, CA
            10036             Television           90036
- ---------------------------------------------------------------------

Brent D.    c/o Showtime      Director of          National
Redstone    Networks Inc.     National             Amusements, Inc.
            1633 Broadway     Amusements, Inc.     200 Elm Street
            New York, NY                           Dedham, MA  02026
            10019
- ---------------------------------------------------------------------

Shari       National          President of         National
Redstone    Amusements, Inc.  National             Amusements, Inc.
            200 Elm Street    Amusements, Inc.     200 Elm Street
            Dedham, MA 02026                       Dedham, MA  02026

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

Fredric V.  Bell Atlantic     Vice Chairman--      Bell Atlantic
Salerno     Corporation       Finance and          Corporation
            1095 Avenue of    Business             1095 Avenue of the
            the Americas      Development of       Americas
            New York, NY      Bell Atlantic        New York, NY
            10036                                  10036

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

William     Yeshiva           VP for Academic      Yeshiva University
Schwartz    University        Affairs (chief       2495 Amsterdam
            2495 Amsterdam    academic officer)    Avenue
            Avenue            of Yeshiva           New York, NY
            New York, NY      University           10033
            10033
- ---------------------------------------------------------------------

Ivan        Bell Atlantic     Chairman of the      Bell Atlantic
Seidenberg  Corporation       Board and Chief      Corporation
            1095 Avenue of    Executive Officer    1095 Avenue of the
            the Americas      of Bell Atlantic     Americas
            New York, NY                           New York, NY
            10036                                  10036
- ---------------------------------------------------------------------

Patty       Bill and Melinda  Co-Chair and
Stonesifer  Gates             President of
            Foundation        Bill and Melinda
            1551 Eastlake     Gates Foundation
            Ave. East
            Seattle, WA
            98102
- ---------------------------------------------------------------------

Robert D.   Cardinal Health,  Chairman and Chief
Walter      Inc.              Executive Officer
            7000 Cardinal     of Cardinal
            Place             Health, Inc.
            Dublin, OH 43017
- ---------------------------------------------------------------------





                           SCHEDULE II

                           NAIRI, INC.
- ---------------------------------------------------------------------
                          EXECUTIVE OFFICERS
- ---------------------------------------------------------------------

                                                    Name and Address
                                                    of Corporation or
              Business or          Principal       Other Organization
   Name    Residence Address      Occupation        in which Employed
                                 or Employment

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

Sumner M.  Viacom Inc.        Chairman of the      National
Redstone*  1515 Broadway      Board of Viacom      Amusements, Inc.
           New York, NY       Inc.; Chairman of    200 Elm Street
           10036              the Board and Chief  Dedham, MA  02026
                              Executive Officer
                              of National
                              Amusements, Inc.;
                              Chairman and
                              President of NAIRI,
                              Inc.
- ---------------------------------------------------------------------

Shari      National           President of         National
Redstone*  Amusements, Inc.   National             Amusements, Inc.
           200 Elm Street     Amusements, Inc.     200 Elm Street
           Dedham, MA  02026  and Executive Vice   Dedham, MA  02026
                              President of NAIRI,
                              Inc.

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

Jerome     National           Vice President and   National
Magner     Amusements, Inc.   Treasurer of         Amusements, Inc.
           200 Elm Street     National             200 Elm Street
           Dedham, MA  02026  Amusements, Inc.     Dedham, MA  02026
                              and NAIRI, Inc.
- ---------------------------------------------------------------------

Richard    National           Vice President of    National
Sherman    Amusements, Inc.   National             Amusements, Inc.
           200 Elm Street     Amusements, Inc.     200 Elm Street
           Dedham, MA  02026  and NAIRI, Inc.      Dedham, MA  02026
- ---------------------------------------------------------------------

*Also a Director




                          SCHEDULE III

                    NATIONAL AMUSEMENTS, INC.

- ---------------------------------------------------------------------
                          EXECUTIVE OFFICERS
- ---------------------------------------------------------------------

                                                    Name and Address
                                                    of Corporation or
              Business or          Principal       Other Organization
   Name    Residence Address      Occupation        in which Employed
                                 or Employment

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

Sumner M.  Viacom Inc.        Chairman of the      National
Redstone*  1515 Broadway      Board of Viacom      Amusements, Inc.
           New York, NY       Inc.; Chairman of    200 Elm Street
           l0036              the Board and Chief  Dedham, MA  02026
                              Executive Officer
                              of National
                              Amusements, Inc.;
                              Chairman and
                              President of NAIRI,
                              Inc.

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

Shari      National           President of         National
Redstone*  Amusements, Inc.   National             Amusements, Inc.
           200 Elm Street     Amusements, Inc.     200 Elm Street
           Dedham, MA  02026  and Executive Vice   Dedham, MA  02026
                              President of NAIRI,
                              Inc.
- ---------------------------------------------------------------------

Jerome     National           VP and Treasurer of  National
Magner     Amusements, Inc.   National             Amusements, Inc.
           200 Elm Street     Amusements, Inc.,    200 Elm Street
           Dedham, MA  02026  and NAIRI, Inc.      Dedham, MA  02026

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

Richard    National           Vice President of    National
Sherman    Amusements, Inc.   National             Amusements, Inc.
           200 Elm Street     Amusements, Inc.     200 Elm Street
           Dedham, MA  02026  and NAIRI, Inc.      Dedham, MA  02026
- ---------------------------------------------------------------------

*Also a Director

- ---------------------------------------------------------------------
                              DIRECTORS
- ---------------------------------------------------------------------

George S.  Winer & Abrams     Attorney             Winer & Abrams
Abrams     60 State Street                         60 State Street
           Boston, MA  02109                       Boston, MA  02109
- ---------------------------------------------------------------------

David      Lourie and Cutler  Attorney             Lourie and Cutler
Andelman   60 State Street                         60 State Street
           Boston, MA  02109                       Boston, MA  02109
- ---------------------------------------------------------------------

Philippe   Residence:         Director of
P. Dauman  121 East 65th      National
           Street             Amusements, Inc.
           New York, NY       and Viacom Inc.
           10021
- ---------------------------------------------------------------------

Brent D.   c/o Showtime       Director of          National
Redstone   Networks Inc.      National             Amusements, Inc.
           1633 Broadway      Amusements, Inc.     200 Elm Street
           New York, NY                            Dedham, MA  02026
           10019

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