Famotidine (Pepcid) for Dogs and Cats. Written by Joshua Conrad, PharmD. ... Try to give the first daily dose of famotidine about 30 minutes before the first meal of each day.

H2 blockers like Pepcid are used in dogs and cats to treat and prevent stomach upset and ulcers (open sores). When they take them with cefpodoxime, H2 blockers can also decrease how much ...