Exhibit 12

Wyeth

Computation of Ratio of Earnings to Fixed Charges

(in thousands except ratio amounts)

	Three Months Ended March 31, 2006		Year Ended December 31,
			2005		2004		2003		2002	2001
Earnings (Loss):
Income (loss) from continuing operations before income taxes	$1,460,615		$4,780,589		$(129,847	)	$2,361,612		$6,097,245	$2,868,747
Add:
Fixed charges	148,750		461,431		360,805		346,564		430,449	439,058
Minority interests	6,693		26,492		27,867		32,352		27,993	20,841
Amortization of capitalized interest	5,500		21,356		9,350		8,772		8,866	2,497
Less:
Equity income (loss)	(132	)	(104	)	(524	)	(468	)	20,766	70,372
Capitalized interest	14,700		46,450		86,750		115,800		88,008	94,257
Total earnings (loss) as defined	$1,606,990		$5,243,522		$181,949		$2,633,968		$6,455,779	$3,166,514
Fixed Charges:
Interest and amortization of debt expense	$119,513		$356,834		$221,598		$182,503		$294,160	$301,145
Capitalized interest	14,700		46,450		86,750		115,800		88,008	94,257
Interest factor of rental expense (1)	14,537		58,147		52,457		48,261		48,281	43,656
Total fixed charges as defined	$148,750		$461,431		$360,805		$346,564		$430,449	$439,058
Ratio of earnings to fixed charges	10.8		11.4		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.