bile that is stored in your gall bladder. Your gallbladder releases the bile to assist with digestion and some of the bile goes to your bowels to expell as waste. Antibiotics kill both good and bad bacteria, and when too many of the good bacteria are killed, you can have diarrhea. You should buy from a pharmacy some probiotics that help replace the good bacteria. Probiotics are billons of cultures that are placed in your stomach and intestines to replace the good bacteria that were used up by the antibiotics. A bottle of probiotics at the pharmacy is cheap, so request the probiotics that are refrigerated. These remain in your gut longer to balance. If you are near the end of your antibiotics, and your stomach is not upset, you may not need the probiotics. Just remember the next time you take antibiotics, use probiotics to keep a settled stomach.