Demerol See morphine. LSD Targets 5HT 2A and 5HT 2C , where it acts either as an antagonist or a partial agonist. Release binding spectrum is probably different, and MDA may have additional effects on receptors. Probably has other effects as well, some of which may be significant. Slight differences in binding spectrum to opiate receptors exist among the various natural and synthetic opiates.
General anesthetics are similar to nitrous oxide, although more toxic.
Ritalin Similar to amphetamine, prescribed for Attention Deficit Disorder Rohypnol See benzodiazepines. These are autoreceptors, which normally limit the activity of adrenergic neurons. By blocking alpha 2 receptors, yohimbine increases the activity of these neurons.