MUMBAI (Reuters) - Shares in Wockhardt Ltd
Wockhardt shares had already slumped by their daily limit of 20 percent on Thursday on the U.S. FDA action.
An "import alert", effectively a ban, results in detention without physical examination of drugs from firms that have not met so-called good manufacturing practices, according to the FDA website.
Wockhardt said the FDA's action potentially affects $100 million in revenue on an annualised basis, but said it should be able to restore most of that within 6 to 9 months by shifting production to other facilities.
Wockhardt shares ended with losses of 6 percent.
(Reporting by Abhishek Vishnoi; Editing by Gopakumar Warrier)