Acute: Initially 4mg, then 2mg after each loose stool; max 16mg/day. Stop after 48 hours if ineffective. Chronic: initially 4mg; maintenance 4–8mg/day. Reevaluate if no improvement after 10 days ...

Bismuth subsalicylate 262mg; caplets; chew tabs; original- or cherry-flavor. <12yrs: use children's form. ≥12yrs: 2 chew tabs every 30–60mins as needed. Caplets: take with water; do not chew.