Fish on Prozac Are Violent And Obsessive | | | Share on reddit Reddit | Share on digg Digg | Share on stumbleupon Stumble | Share on email Email | More Sharing Services More Photo: USFWS 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. Nature News reports : To investigate the effects of fluoxetine, researchers have turned to a common US freshwater fish species called the fathead minnow ( Pimephales promelas ). Normally, fathead minnows show a complex mating behaviour, with males building the nests that females visit to lay their eggs. Once the eggs are laid and fertilized, the males ...