Exhibit 12

MERCK & CO., INC. AND SUBSIDIARIES

Computation of Ratios of Earnings to Fixed Charges

($ in millions except ratio data)

	Years Ended December 31,
	2011			2010			2009			2008			2007
Income Before Taxes	$	7,334		$	1,653		$	15,290		$	9,931		$	3,492
Add (Subtract):
One-third of rents		138			144			79			75			66
Interest expense, gross		749			715			460			251			384
Interest capitalized, net of amortization		(2	)		3			27			42			32
Equity (income) loss from affiliates, net of distributions		(394	)		(263	)		(511	)		(494	)		(454	)
Earnings as defined	$	7,825		$	2,252		$	15,345		$	9,805		$	3,520
One-third of rents	$	138		$	144		$	79		$	75		$	66
Interest expense, gross		749			715			460			251			384
Preferred stock dividends		138			202			143			145			158
Fixed Charges	$	1,025		$	1,061		$	682		$	471		$	608
Ratio of Earnings to Fixed Charges		8			2			23			21			6

For purposes of computing these ratios, “earnings” consist of income before taxes, one-third of rents (deemed by the Company to be representative of the interest factor inherent in rents), interest expense, interest capitalized, net of amortization and equity (income) loss from affiliates, net of distributions. “Fixed charges” consist of one-third of rents, interest expense as reported in the consolidated financial statements and dividends on preferred stock. Interest expense does not include interest related to uncertain tax positions.