Exhibit 12

MERCK & CO., INC. AND SUBSIDIARIES

Computation of Ratios of Earnings to Fixed Charges

($ in millions except ratio data)

	Years Ended December 31,
	2015		2014		2013		2012		2011
Income Before Taxes	$	5,401	$	17,283	$	5,545	$	8,739	$	7,334
Add (Subtract):
One-third of rents	101		117		122		133		138
Interest expense, gross	672		732		801		714		749
Interest capitalized, net of amortization	(3)		(1)		(2)		(49)		(2)
Equity (income) loss from affiliates, net of distributions	(155)		(72)		(168)		(350)		(394)
Earnings as defined	$	6,016	$	18,059	$	6,298	$	9,187	$	7,825
One-third of rents	$	101	$	117	$	122	$	133	$	138
Interest expense, gross	672		732		801		714		749
Preferred stock dividends	—		86		147		163		138
Fixed Charges	$	773	$	935	$	1,070	$	1,010	$	1,025
Ratio of Earnings to Fixed Charges	8		19		6		9		8

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.