Drug receptors and drug classification.
D000818:Animals; D002118:Calcium; D006168:Guinea Pigs; D006632:Histamine; D004364:Pharmaceutical Preparations / Q000145:classification*; D010909:Pituitary Hormones, Posterior; D011955:Receptors, Drug
D004364:Pharmaceutical Preparations; D010909:Pituitary Hormones, Posterior; D011955:Receptors, Drug; D006632:Histamine; D002118:Calcium