You may not be able to take dextromethorphan if you have a history of alcohol or drug abuse. Dextromethorphan, when used as directed, is typically a safe and effective medication for many people. However, there have been reports of people abusing dextromethorphan by using it recreationally for nonmedical purposes. This problem seems to be more common in teenagers, who may use dextromethorphan to get "high."
Abusing this drug can be dangerous and may cause potentially serious complications, including seizures, loss of consciousness, or death. Talk to your healthcare provider if you or someone you know may be abusing dextromethorphan.
(Click Precautions and Warnings With Dextromethorphan for more information on abusing this medication. This resource also outlines other important safety precautions to be aware of before using dextromethorphan.)