I was just thinking about how incredibly shitty this is to use for recreational purposes, but discovered one tiny little thing you might want to try. Aside from potentiating opiates due to its action in the GI tract in which the enzyme CYP2D6 is responsible for metabolizing, it will also enhance sexual pleasure. Take about 150-200+mg (just depends on preference but take too much and you'll see shit and hear shit that's not there, and it is overall not a pleasant experience) and wait about 1-1.5 hours. Then, either got sex your girlfriend/boyfriend or just beat it, and the orgasm is very intense. I tried it, it works.

Results may vary. Batteries are not included. Some assembly required.
Just try to stay away from 300-400mg+ especially if combined with other drugs, because you'll get to enjoy temporary schizophrenia for about 6 hours.
Discuss.