United States-Worlds biggest Drug Deal.

UNITED STATES-WORLDS BIGGEST DRUG DEAL.

Pfizer announced Monday that it has signed a deal to acquire the smaller drugmaker Wyeth for $68 billion.

New York-based Pfizer, already the world’s leading drugmaker, becomes even larger following the cash-and-stock deal with Wyeth, based in Madison, N.J.

The deal values Wyeth shares at $50.19 each, a nearly 15% premium to Friday’s closing price. Pfizer agreed to pay $33 in cash and 0.985 share in Pfizer stock for each Wyeth share.

Pfizer said the deal would be financed through a combination of cash, debt and stock. The company said it is borrowing $22.5 billion from a consortium of banks.