Brand Names:

Drug Type: H2blocker


Cimetidine is a histamine type 2 receptor antagonist (H2 blocker) known for it's wide use in treatment of acid-peptic disease in humans. It has also shown to be of benefit for shrinking tumors in horses with melanoma, dogs, and humans. It has been sporadically given to birds and has shown potential.

Storage/Stability: Cimetidine products should be stored protected from light and kept at room temperature. Do not refrigerate the injectable product as precipitation may occur. Oral dosage forms should be stored in tight containers.
  • 10mg given orally, twice a day
tablets (200, 300, 400, 800 mg) or liquid (60 mg/ml) for oral administration. Also available as an injectable solution (150 mg/ml) for IM or IV administration.
  • May cause depression, diarrhea, tachycardia, and respiratory failure.