title: Interference in immunological methods of pregnancy testing by promethazine.
mesh_terms: D001789:Blood Group Antigens / Q000187:drug effects; D006063:Chorionic Gonadotropin / Q000037:antagonists & inhibitors; D005188:False Negative Reactions; D005189:False Positive Reactions; D005260:Female; D006384:Hemagglutination; D006801:Humans; D011247:Pregnancy; D011258:Pregnancy Tests; D011398:Promethazine / Q000009:adverse effects / Q000494:pharmacology*
chemical_list: D001789:Blood Group Antigens; D006063:Chorionic Gonadotropin; D011398:Promethazine