Can I give my yellow lab puppy (9 months) pepto bismol?

Our vet prescribed our puppy pepto at 12 weeks of age for her diarrhea. She only weighed 2 lbs 5 oz and the dose prescribed was 1/8 tsp every 6 hours. Didn't need it after all since it cleared on its own, but just to answer your question. For a bigger puppy, just call the vet and ask what dosage to give.