Exhibit 12

Wyeth
Computation of Ratio of Earnings to Fixed Charges
(in thousands except ratio amounts)

	Six Months      Ended		Year Ended December 31,
	June 30,       2005		2004		2003		2002	2001	2000
Earnings (Loss):
Income (loss) from continuing
operations before income taxes	$ 2,617,509		$(129,847	)	$ 2,361,612		$6,097,245	$2,868,747	$(1,101,040	)
Add:
Fixed charges	207,686		360,805		346,564		430,449	439,058	324,887
Minority interests	8,806		27,867		32,352		27,993	20,841	26,784
Amortization of capitalized interest	10,703		9,350		8,772		8,866	2,497	1,917
Less:
Equity income (loss)	(16	)	(524	)	(468	)	20,766	70,372	55,991
Capitalized interest	17,500		86,750		115,800		88,008	94,257	43,303
Total earnings (loss) as defined	$ 2,827,220		$ 181,949		$ 2,633,968		$6,455,779	$3,166,514	$  (846,746	)
Fixed Charges:
Interest and amortization of debt      expense	$    163,958		$ 221,598		$    182,503		$   294,160	$   301,145	$    238,840
Capitalized interest	17,500		86,750		115,800		88,008	94,257	43,303
Interest factor of rental expense (1)	26,228		52,457		48,261		48,281	43,656	42,744
Total fixed charges as defined	$    207,686		$ 360,805		$    346,564		$   430,449	$   439,058	$    324,887
Ratio of earnings to fixed charges (2)	13.6		0.5		7.6		15.0	7.2	—

(1) A 1/3 factor was used to compute the portion of rental expenses deemed representative of the interest factor.

(2) The results of operations for the year ended December 31, 2000 was inadequate to cover total fixed charges as defined. The coverage deficiency for the year ended December 31, 2000 was $1,171,633.