15 Scariest Side Effects of Drugs

Colorful Pee 1 of 21

Most of us take prescription drugs at one time or another, but nobody wants to experience side effects as scary and bizarre as these!

Rainbow-colored urine is one side effect that could make for a freaky visit to the bathroom! Here's some strange pee colors, and the drugs that can cause them:

  • Blue --  Dyrenium (a diuretic)
  • Purple -- Phenolphthalein (a laxative)
  • Green -- Elavil (an antidepressant), and Robaxin (a muscle relaxant)
  • Black -- Flagyl (an antibiotic)

It doesn't just stop in the bathroom! Click through for more weird, wild, and frightening potential side effects of prescription drugs.

And remember, always consult your doctor before starting or stopping any medication -- prescription or otherwise!