Clobutinol is a cough suppressant distributed by Boehringer-Ingelheim, Novartis's Hexal (Sandoz), Stada and possibly other companies.

Side effects and withdrawal

Studies in 2004 had indicated that clobutinol has the potential to prolong the QT interval.[1] Clobutinol was in 2007 determined to cause cardiac arrhythmia in some patients.[2]

Boehringer Ingelheim products containing clobutinol were voluntarily withdrawn from sale in Germany, and the rest of the world, on August 31, 2007.[3]

The approval for Germany and the EU was revoked in 2008.[4]

See also