Verapamil and morphine.
Hollman
A
A
D002309:Cardiology / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D009020:Morphine / Q000266:history*; D010207:Papaver; D010946:Plants, Medicinal; D014700:Verapamil / Q000266:history*
D009020:Morphine; D014700:Verapamil