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  <TITLE> Merck & Co., Inc. (Form: 8-K) </TITLE>
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  		UNITED STATES<BR>
  	SECURITIES AND EXCHANGE COMMISSION
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  	WASHINGTON, D.C. 20549
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  	FORM 8-K
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  	CURRENT REPORT
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  	Pursuant to Section&nbsp;13 or 15(d) of the Securities Exchange Act of 1934
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  	Date of Report (Date of Earliest Event Reported):
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  	&nbsp;
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  	December 20, 2006
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  	Merck & Co., Inc.
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  <BR>__________________________________________<BR>
  	(Exact name of registrant as specified in its charter)
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  	New Jersey
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  	1-3305
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  	22-1109110
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  _____________________<BR>
  	(State or other jurisdiction
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  _____________<BR>
  	(Commission
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  ______________<BR>
  	(I.R.S. Employer
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  	of incorporation)
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  	File Number)
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  	Identification No.)
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  	&nbsp;&nbsp;
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  	One Merck Drive, P.O. Box 100, Whitehouse Station, New Jersey
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  	08889
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  _________________________________<BR>
  	(Address of principal executive offices)
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  	&nbsp;
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  ___________<BR>
  	(Zip Code)
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  	Registrant&#146;s telephone number, including area code:
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  	908-423-1000
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  	Not Applicable
  <BR>______________________________________________<BR>
  	Former name or former address, if changed since last report
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  	&nbsp;
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  <!-- CoverPageRegistrant END --><P><FONT SIZE="2">
  Check the appropriate box below if the Form 8-K filing is intended to
  simultaneously satisfy the filing obligation of the registrant under any
  of the following provisions:</FONT>
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  <P><FONT SIZE="2">
  [&nbsp;&nbsp;]&nbsp;&nbsp;Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)<br>
  [&nbsp;&nbsp;]&nbsp;&nbsp;Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)<br>
  [&nbsp;&nbsp;]&nbsp;&nbsp;Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))<br>
  [&nbsp;&nbsp;]&nbsp;&nbsp;Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))<br>
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  <B>
  	Item 8.01 Other Events.
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  Incorporated by reference is a press release issued by Merck & Co., Inc. (the "Company") on December 20, 2006, attached as Exhibit 99, regarding the Company's announcement that the Board of Directors of the Company has elected Richard T. Clark, Chief Executive Officer and President of the Company as Chairman of the Board, effective April 24, 2007.  The Board of Directors also appointed Dr. Samuel O. Thier, as lead director.
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  	Item 9.01 Financial Statements and Exhibits.
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  (d)  Exhibits<br><br>Exhibit 99	Press release issued December 20, 2006 <br>
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  	SIGNATURES
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  	Pursuant to the requirements of the Securities Exchange Act of 1934, the
  	registrant has duly caused this report to be signed on its behalf by the
  	undersigned hereunto duly authorized.
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  	Merck & Co., Inc.
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  	&nbsp;&nbsp;
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  <I>
  	December 21, 2006
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  	&nbsp;
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  	By:
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  <I>
  	/s/ Debra A. Bollwage
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  <I>
  	Name: Debra A. Bollwage
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  <I>
  	Title: Senior Assistant Secretary
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  	Exhibit&nbsp;Index
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  	Exhibit No.
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  	Description
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  	99
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  Press release issued December 20, 2006
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metadata_documents: [{"type": "8-K", "sequence": "1", "filename": "htm_17183.htm", "description": "LIVE FILING", "secsgml_size_bytes": 10117}]
metadata_filer: {"company-data": {"conformed-name": "MERCK & CO INC", "cik": "0000064978", "assigned-sic": "2834", "irs-number": "221109110", "state-of-incorporation": "NJ", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-03305", "film-number": "061292017"}, "business-address": {"street1": "ONE MERCK DR", "street2": "P O BOX 100", "city": "WHITEHOUSE STATION", "state": "NJ", "zip": "08889-0100", "phone": "9084231688"}, "mail-address": {"street1": "ONE MERCK DR", "street2": "PO BOX 100 WS3AB-05", "city": "WHITEHOUSE STATION", "state": "NJ", "zip": "08889-0100"}}
text: Merck & Co., Inc. (Form: 8-K)
  UNITED STATES
  SECURITIES AND EXCHANGE COMMISSION
  WASHINGTON, D.C. 20549
  FORM 8-K
  CURRENT REPORT
  Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
  Date of Report (Date of Earliest Event Reported):
  December 20, 2006
  Merck & Co., Inc.
  __________________________________________
  (Exact name of registrant as specified in its charter)
  New Jersey
  1-3305
  22-1109110
  _____________________
  (State or other jurisdiction
  _____________
  (Commission
  ______________
  (I.R.S. Employer
  of incorporation)
  File Number)
  Identification No.)
  One Merck Drive, P.O. Box 100, Whitehouse Station, New Jersey
  08889
  _________________________________
  (Address of principal executive offices)
  ___________
  (Zip Code)
  Registrant's telephone number, including area code:
  908-423-1000
  Not Applicable
  ______________________________________________
  Former name or former address, if changed since last report
  Check the appropriate box below if the Form 8-K filing is intended to
  simultaneously satisfy the filing obligation of the registrant under any
  of the following provisions:
  [  ]  Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
  [  ]  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
  [  ]  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
  [  ]  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
  Top of the Form
  Item 8.01 Other Events.
  Incorporated by reference is a press release issued by Merck & Co., Inc. (the "Company") on December 20, 2006, attached as Exhibit 99, regarding the Company's announcement that the Board of Directors of the Company has elected Richard T. Clark, Chief Executive Officer and President of the Company as Chairman of the Board, effective April 24, 2007.  The Board of Directors also appointed Dr. Samuel O. Thier, as lead director.
  Item 9.01 Financial Statements and Exhibits.
  (d)  Exhibits
  Exhibit 99	Press release issued December 20, 2006
  Top of the Form
  SIGNATURES
  Pursuant to the requirements of the Securities Exchange Act of 1934, the
  	registrant has duly caused this report to be signed on its behalf by the
  	undersigned hereunto duly authorized.
  Merck & Co., Inc.
  December 21, 2006
  By:
  /s/ Debra A. Bollwage
  Name: Debra A. Bollwage
  Title: Senior Assistant Secretary
  Top of the Form
  Exhibit Index
  Exhibit No.
  Description
  99
  Press release issued December 20, 2006