At dosage levels above 1,000 mg, the effects of dextromethorphan are very similar to those of
A) phencyclidine.
B) high doses of cocaine.
C) the now-banned substance methaqualone.
D) inhalants.

Question

Quizplus · Accepted Answer

At high doses, dextromethorphan acts as a dissociative anesthetic similar to phencyclidine (PCP), affecting the NMDA receptor and causing hallucinations and altered perceptions.

At Dosage Levels Above 1,000 Mg, the Effects of Dextromethorphan