Dextromethorphan or DXM is an effective and harmless cough and cold suppressant available in many cold and cough preparations. At maximum dosage, it mimics hallucinogenic and psychoactive effects in human body and hence it is appealing for abuse. In this work, a detailed study of an antitussive agent i.e. Dextromethorphan which is a semi-synthetic opioid and a replacement of codeine and...