Exhibit 12

MERCK & CO., INC. AND SUBSIDIARIES

Computation of Ratios of Earnings to Fixed Charges

($ in millions except ratio data)

		Years Ended December 31,
		2008				2007				2006				2005				2004
Income Before Taxes		$	9,807.8			$	3,370.7			$	6,221.4			$	7,363.9			$	7,974.5
Add (Subtract):
One-third of rents			74.8				66.4				67.8				68.2				71.9
Interest expense, gross			251.3				384.3				375.1				385.5				293.7
Interest capitalized, net of amortization			40.9				31.8				29.4				(1.0	)			(21.3	)
Equity (income) loss from affiliates, net of distributions			(493.7	)			(454.3	)			(362.5	)			(615.9	)			(421.2	)
Preferred stock dividends, net of tax			120.0				120.0				120.0				120.0				151.0
Earnings as defined		$	9,801.1			$	3,518.9			$	6,451.2			$	7,320.7			$	8,048.6
One-third of rents		$	74.8			$	66.4			$	67.8			$	68.2			$	71.9
Interest expense, gross			251.3				384.3				375.1				385.5				293.7
Preferred stock dividends			145.0				158.1				166.0				166.7				207.1
Fixed Charges		$	471.1			$	608.8			$	608.9			$	620.4			$	572.7
Ratio of Earnings to Fixed Charges			21				6				11				12				14

For purposes of computing these ratios, “earnings” consist of income from continuing operations before taxes, one-third of rents (deemed by the Company to be representative of the interest factor inherent in rents), interest expense, net of amounts capitalized, equity (income) loss from affiliates, net of distributions, and dividends on preferred stock of subsidiary companies. “Fixed charges” consist of one-third of rents, interest expense as reported in the Company’s consolidated financial statements and dividends on preferred stock of subsidiary companies. Interest expense does not reflect interest on Financial Accounting Standards Board Interpretation No. 48, Accounting for Uncertainty in Income Taxes – an interpretation of FASB Statement No. 109, (“FIN 48”) liabilities.