title: The heterogeneity of the slow channel blockers (calcium antagonists).
mesh_terms: D001665:Binding Sites; D002121:Calcium Channel Blockers / Q000145:classification / Q000378:metabolism; D002462:Cell Membrane / Q000378:metabolism; D055598:Chemical Phenomena; D002621:Chemistry; D006801:Humans; D009543:Nifedipine / Q000031:analogs & derivatives / Q000378:metabolism; D009568:Nitrendipine; D010208:Papaverine / Q000031:analogs & derivatives; D014700:Verapamil / Q000378:metabolism
chemical_list: D002121:Calcium Channel Blockers; D009568:Nitrendipine; D014700:Verapamil; D010208:Papaverine; D009543:Nifedipine