Prozac’s host of side effects aren’t just limited to depressed humans. Fish, too, suffer when the drug washes into their streams, rivers and lakes. When people excrete Prozac’s active ingredient, fluoxetine, in their urine, the chemical finds paths into natural waterways through sewage treatment plants that are unequipped to filter it out. When male fish ingest the drug, it seemingly alters their minds to the point of dysfunction and even destruction.
LINK (via:Smithsonian)