title: Potential histamine H2-receptor antagonists: ranitidine analogues containing "semicarbazono equivalent" groups.
mesh_terms: D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D006168:Guinea Pigs; D006635:Histamine H2 Antagonists / Q000138:chemical synthesis*; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000187:drug effects; D009131:Muscle, Smooth, Vascular / Q000187:drug effects; D011899:Ranitidine / Q000031:analogs & derivatives* / Q000494:pharmacology; D012664:Semicarbazones
chemical_list: D006635:Histamine H2 Antagonists; D012664:Semicarbazones; D011899:Ranitidine