It is common for people to experience pleasurable and even euphoriant effects from ingesting capsaicin.
From the en.wikipedia.org
It is common for people to experience pleasurable and even euphoriant effects from eating capsaicin-flavored foods.
From the latimes.com
Fantasy is an extremely toxic euphoriant, because the difference between a normal intoxicating dose and a fatal dose is so small.
From the sciencedaily.com
For instance, opioids, which are approved as palliative treatment for pain, may also be used for their euphoriant properties as anxiolytics or antidepressants, whether medically or recreationally.
From the en.wikipedia.org
More examples
Tending to produce euphoria
A euphoriant (or euphorigenic) is a type of psychoactive drug which tends to induce feelings of euphoria , the effects of which may include relaxation, anxiolysis, stress relief, mood lift, pleasure, and a rush although these effects are not necessary for a drug to be a euphoriant. ...
Produces a sense of bodily comfort; temporary effect and often addictive
A substance which stimulates an exaggerated feeling of well-being.
Brings on an exaggerated sense of physical and emotional well-being.