AgentDosageComments
Bismuth subsalicylate (Pepto-Bismol)Two 262-mg tablets or 2 fluid oz (60 mL) four times daily for up to three weeksAvoid if allergic to aspirin, pregnant, or on anticoagulants, probenecid (Benemid), or methotrexate (Rheumatrex).
Avoid in patients taking doxycycline (Vibramycin) for malaria prophylaxis.
Lactobacillus GG (Culturelle)Optimal dosing not yet determinedSafe; more studies needed to confirm efficacy