GI Drugs Flashcards
Cimetidine
H2 blocker
Last choice H2 blocker due to side effects: drug interactions, prolactin release –> gynecomastia, reduced libido, can cross BBB and placenta
Ranitidine
H2 blocker
May cause headaches
Famotidine
H2 blocker
May cause headaches
Nizatidine
H2 blocker
Omeprazole
PPI
Irreversibly inhibits H+/K+ ATPase in stomach parietal cells
Lansoprazole
PPI
Irreversibly inhibits H+/K+ ATPase in stomach parietal cells
Esomeprazole
PPI
Irreversibly inhibits H+/K+ ATPase in stomach parietal cells
Pantoprazole
PPI
Irreversibly inhibits H+/K+ ATPase in stomach parietal cells
Dexlansoprazole
PPI
Irreversibly inhibits H+/K+ ATPase in stomach parietal cells
Bismuth-subsalicylate (Pepto bismol)
Coats and provides physical protection of ulcers; antibacterial
May turn stools black
Misoprostol
PGE1 analog increases production and secretion of mucus and decreases acid production
Indicated for NSAID-induced ulcers
Contraindicated in women of childbearing age (abortifacient)
Aluminum hydroxide (Maalox)
Antacid
Side effects include hypokalemia, constipation, osteoporosis, hypophosphatemia
Calcium carbonate (Tums)
Antacid
May cause hypokalemia, hypercalcemia
Magnesium hydroxide (Maalox)
Antacid and osmotic laxative
May cause hypokalemia, hypermagnesmia, and diarrhea
Magnesium citrate
Osmotic laxative