About Noscapine A benzylisoquinoline alkaloid(opium alkaloid), Antitussive, mild analgesic. Mechanism of Action of Noscapine It acts as antitussive by selectively suppressing cough without narcotic, analgesic, or dependence inducing properties. Indications for Noscapine 1.Spasmodic cough 2.Irritant dry cough 3.Bronchitis 4.Tracheitis 5.Viral infections of the upper respiratory tract 6.Pertussis (Whooping cough)