<s>[INST] I was on clindamycin for 10 days approximately a month ago. For the past 5 days I have had diarrhea and stomach cramps. My stool is now greenish with mucus. Should I start taking a probiotic? I think the antibiotic destroyed all of my bacteria. What do you think? [/INST] Hi, Yes, during the course of treatment clindamycin can cause diarrhea apparently due to destruction of normal good bacteria and overgrowth of bad or harmful bacteria such as clostridium difficile. However, this antibiotic induced diarrhea usually subsides over few days after stopping the medicine. Based on the history you seem to have infective gastroenteritis for which I advise you to consult your doctor for proper evaluation and treatment which may involve antibiotics in addition to probiotics and correction of deny Chat Doctor. Take care. Hope I have answered your question. Let me know if I can assist you further.  </s>