NEW YORK (Reuters) - Shares of Mylan NV are trading at historically low valuations as the company's chief executive officer is set to face a congressional grilling on Wednesday over the price of its EpiPen emergency allergy treatment.

NEW YORK (Reuters) - A U.S. appeals court on Tuesday threw out a $147.8 million price-fixing verdict against two Chinese companies that were accused of conspiring to raise prices and lower supply of vitamin C sold to U.S. purchasers.

SAN FRANCISCO (Reuters) - Shares of MGT Capital Investments , led by anti-virus software pioneer John McAfee, dropped 21 percent on Tuesday after it said the New York Stock Exchange denied approval of the listing of shares for a planned merger with anti-spyware company D-Vasive Inc.

LOS ANGELES (Reuters) - The husband of Jim Carrey's former girlfriend sued the actor on Monday, accusing him of illegally supplying Cathriona White with prescription drugs that resulted in her death.

Sept 20 (Reuters) - Wall Street was higher on Tuesday afternoon, helped by gains in healthcare stocks and an overall sentiment that the U.S. Federal Reserve might not raise interest rates.

FRANKFURT, Sept 20 (Reuters) - German drugmaker Bayer said its two best-selling drugs had a higher annual peak sales potential than previously targeted, after the agreed $66 billion takeover of Monsanto stirred criticism it might neglect its pharmaceuticals business.

MOSCOW (Reuters) - Russian Prime Minister Dmitry Medvedev on Tuesday had a private meeting with Viktor Vekselberg, the billionaire tycoon whose lieutenants were earlier this month put in jail on charges of paying bribes to local government officials.

(Reuters) - Amgen Inc said on Tuesday its potent new cholesterol fighter, Repatha, met the primary and secondary goals of a study designed to show it can decrease plaque buildup in heart arteries of patients already taking widely used statin drugs, such as Lipitor.

JAKARTA (Reuters) - Harvard and Columbia university research showing smoke from land fires in Southeast Asia led to more than 100,000 premature deaths last year "makes no sense at all," an official at Indonesia's Health Ministry said on Tuesday.