Cocaine hydrochloride is used as a local anesthetic, usually associated with surgery of accessible mucous membranes of the oral, laryngeal and nasal cavities. Cocaine blocks the initiation or conduction of nerve impulses following local application and is absorbed at all sites of application, including mucous membranes and the gastrointestinal mucosa. Unfortunately, cocaine is one of the most abused drugs, and is a multi-billion dollar business with illegal drug manufacturers and smugglers. Side effects include abdominal pains, chills, confusion, dizziness, excitement, nervousness, restlessness, and hallucinations.