1 interaction related to long half life
Fluoxetine (Prozac) is an SSRI antidepressant, and alcohol is a central nervous system depressant. The FDA-approved Prozac label states that alcohol use is not recommended while taking fluoxetine. Fluoxetine and its active metabolite norfluoxetine also have unusually long half-lives, so the drug stays in your system for weeks once you reach steady state — there is no simple "timing window" that avoids the interaction. Notably, a controlled human study found that alcohol did not measurably increase fluoxetine's psychomotor impairment, so the combined sedative effect is more modest than once assumed; the precaution remains sensible but is not an emergency.
