Inhibition of red cell agglutination in the ABO system by promethazine.
D000017:ABO Blood-Group System; D001787:Blood Group Incompatibility / Q000188:drug therapy; D004912:Erythrocytes / Q000187:drug effects*; D005260:Female; D006384:Hemagglutination / Q000187:drug effects*; D006801:Humans; D011247:Pregnancy; D011250:Pregnancy Complications, Hematologic / Q000188:drug therapy; D011398:Promethazine / Q000494:pharmacology*
D000017:ABO Blood-Group System; D011398:Promethazine