Exhibit 12

MERCK & CO., INC. AND SUBSIDIARIES

Computation Of Ratios Of Earnings To Fixed Charges

(In millions except ratio data)

			Nine Months
			Ended
			September 30			Years Ended December 31
			2001			2000			1999			1998			1997			1996
Income Before Taxes				$	7,744.1		$	9,824.1		$	8,619.5		$	8,133.1		$	6,462.3		$	5,540.8
Add:
	One-third of rents				57.3			67.0			66.7			56.0			47.0			41.0
	Interest expense, net				280.0			361.9			236.4			150.6			98.2			103.2
	Preferred stock dividends				157.0			205.2			120.7			62.1			49.6			70.0
		Earnings		$	8,238.4		$	10,458.2		$	9,043.3		$	8,401.8		$	6,657.1		$	5,755.0
One-third of rents				$	57.3		$	67.0		$	66.7		$	56.0		$	47.0		$	41.0
Interest expense					355.2			484.4			316.9			205.6			129.5			138.6
Preferred stock dividends					157.0			205.2			120.7			62.1			49.6			70.0
		Fixed Charges		$	569.5		$	756.6		$	504.3		$	323.7		$	226.1		$	249.6
Ratio of Earnings to Fixed Charges					14			14			18			26			29			23

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, net of amounts capitalized, 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.