A study on the chemical structure of cinchona alkaloids and cupreines responsible for its negative inotropic action in isolated amphibian and mammalian hearts.
D000663:Amphibians; D000818:Animals; D002930:Cinchona Alkaloids / Q000494:pharmacology*; D006321:Heart / Q000187:drug effects*; D011804:Quinolines
D002930:Cinchona Alkaloids; D011804:Quinolines; C552577:cupreine
CINCHONA ALKALOIDS/effects; HEART/effect of drugs on