Famotidine is an H2-receptor antagonist that decreases stomach acid production. It is commonly used to treat and prevent ulcers in the stomach and intestines, and to manage conditions like gastroesophageal reflux disease (GERD).

Cefalexin is a widely used first-generation cephalosporin antibiotic. It is highly effective against Gram-positive bacteria and is commonly prescribed for skin infections, urinary tract infections, and mild respiratory infections. It kills bacteria by interfering with their cell wall synthesis.