Cisapride on harsh patent dispute.

Janssen Korea's Prepulcid (cisapride), one of the top ethical drugs in the hospital market and a GI motility regulator, had earlier met an unprecedented challenge with many Cisapride generic products developed by domestic drug companies (Daewoong, Kyungdong and Hami), which provoked Janssen Korea to put them a lawsuit for the patent infringement.

Janssen claimed that the above 3 companies sh...