Medication for our ailing dog Taylor

Prescribed by our veterinarian Ann Resnik, DVM was 20 mg tablets of Famotidine Tabs, and Sucralfate 1 gm tabs -- prescriptions cost $18 and another office exam was not necessary. . .If he begins to have vomiting spells we are to call for appointment whereas we will be giving him these pills until he is normal for 24 hours!