Taking clindamycin 150 on day 2 stomach is getting upset. Have tried taking it with food, but still feel pain and nausea. Can I take pepto, etc?

Tummy ache clinda. Clindamycin can make your intestinal flroa(normal good bacteria) to die as awell and give you tummy ache. If you have blood or mucous in y our bowel movements talk to your doc asap.
Yes. Don't take the two together . Space them 1-2 hours apart. Notify your dr about this side effect. Take care!