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

July 28, 2003

(Date of earliest event reported)

CONNETICS CORPORATION

(Exact name of Registrant as specified in its charter)

Delaware	0-27406	94-3173928
(State or Other Jurisdiction of Incorporation)	(Commission File No.) Identification No.)	(IRS Employer

3290 West Bayshore Road, Palo Alto, California 94303

(Address of principal executive offices, including zip code)

(650) 843-2800

(Registrant’s telephone number, including area code)

1

TABLE OF CONTENTS

	Item 7. Financial Statements and Exhibits.
	Item 9. Regulation FD Disclosure (Information also provided Under Item 12 — Disclosure of Results of Operations and Financial Condition).
SIGNATURES
EXHIBIT INDEX
EXHIBIT 99.1

Item 7.	Financial Statements and Exhibits.
(c)	Exhibits.
	99.1	Earnings Press Release dated July 28, 2003.

Item 9.	Regulation FD Disclosure (Information also provided Under Item 12 — Disclosure of Results of Operations and Financial Condition).
	On July 28, 2003, Connetics Corporation, a Delaware corporation, issued a press release announcing earnings for the quarter ended June 30, 2003. A copy of the earnings release is furnished as Exhibit 99.1 to this report.
	The information in this Current Report on Form 8-K, including the exhibit, is furnished under “Item 12. Results of Operations and Financial Condition” in accordance with SEC Release No. 33-8216. The information in this current Report on Form 8-K, including the exhibit, shall not be deemed to be incorporated by reference into the filings of the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended.

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.

	CONNETICS CORPORATION
	By:	/s/ Katrina J. Church Katrina J. Church Executive Vice President, Legal Affairs General Counsel and Secretary
Date: July 28, 2003

EXHIBIT INDEX

Exhibit
Number	Description
99.1	Press Release dated July 28, 2003