EXHIBIT 12

Pfizer Inc. And Subsidiary Companies
Ratio of Earnings to Fixed Charges

					Year Ended December 31,
(millions of dollars, except ratios)					2000		1999		1998		1997		1996
Determination of earnings:
Income from continuing operations before provision for
	taxes on income and minority interests				$	5,781	$	6,945	$	4,397	$	3,979	$	3,636
Less:
		Minority interests				14		5		2		10		74
				Adjusted income		5,767		6,940		4,395		3,969		3,562
				Fixed charges		496		463		334		389		373
				Total earnings as defined	$	6,263	$	7,403	$	4,729	$	4,358	$	3,935
Fixed charges:
			Interest expense (a)		$	390	$	364	$	251	$	315	$	307
			Rents (b)			106		99		83		74		66
				Fixed charges		496		463		334		389		373
			Capitalized interest			46		40		26		10		15
				Total fixed charges	$	542	$	503	$	360	$	399	$	388
Ratio of earnings to fixed charges						11.6		14.7		13.1		10.9		10.1

(a)	Interest expense includes amortization of debt discount and expenses.
(b)	Rents included in the computation consist of one-third of rental expense which the Company believes to be a conservative estimate of an interest factor in its leases, which are not material.