Glenmark plans to start selling its anti-diarrhoea drug, Crofelemer, by the first-half of 2010 across the globe, except in North America, Europe, Japan and China, the company said. The confidence to sell the drug ahead of its rivals comes as the Crofelemer's original developer, Napo Pharmaceutical Inc, recently entered into a tie-up with a US-based drug maker, Salyx, for selling the drug in the US market, paving the way for Glenmark to sell it in the rest of the world.