Proceedings: Comparative effects of codeine and senna on the motor activity of the left colon.
D003061:Codeine / Q000494:pharmacology*; D003106:Colon / Q000187:drug effects*; D005769:Gastrointestinal Motility / Q000187:drug effects*; D006801:Humans; D009043:Motor Activity / Q000187:drug effects; D011312:Pressure; D012676:Senna Extract / Q000494:pharmacology*
D012676:Senna Extract; D003061:Codeine