In a setback to Indian pharmaceutical giant Ranbaxy the US has prohibited the company from producing and distributing drugs for the American market from its Toansa facility in Punjab.In an order the Food and Drug Administration yesterday prohibited Ranbaxy from distributing in the US the drugs manufactured using active pharmaceutical ingredients (API) in Toansa including drugs made by Ranbaxy's Ohm Laboratories facility in New Jersey.Ranbaxy has also been prohibited from manufacturing API at its Toansa facility for FDA-regulated drug products; exporting API from Toansa to the US for any purpose; and providing API from Toansa to other companies including other