May 20 - Generic drugmaker Actavis Inc, itself the subject of takeover speculation, said on Monday it would buy specialty pharmaceutical company Warner Chilcott Plc for $5 billion in stock to expand its branded drug portfolio, lower taxes and increase profits.
* New research centre and corporate HQ to cost some $500 mln
WASHINGTON, May 20 - The U.S. Supreme Court on Monday agreed to hear a patent dispute concerning Medtronic Inc over medical devices it manufactures that give the heart electrical jolts when it fails to pump blood properly.
* Designed to help patients fall asleep, stay asleep * Merck's shares fall 1.1 percent to $45.47 By Toni Clarke May 20 - Merck & Co's experimental insomnia drug suvorexant appears generally effective, according to reviewers at the U.S. Food and Drug Administration, but they questioned the company's proposed dosing levels. The reviewers posted their comments on the FDA's website on Monday, two days ahead of a meeting of outside medical experts which will advise the age
LONDON, May 20 - Britain launched a research programme on Monday that should eventually allow all cancer patients to have access to the kind of genetic analysis that led Hollywood star Angelina Jolie to decide to undergo a double mastectomy.
MUMBAI/NEW DELHI - Essar Oil Ltd will sign a $1 billion loan deal with China on Tuesday that sources with knowledge of the matter said would be backed by supply of refined products to top state oil producer PetroChina.