The effects produced by the interaction between potassium ion and pentobarbital on the force of contraction of isolated guinea pig atria.
D000818:Animals; D004336:Drug Antagonism; D004357:Drug Synergism; D006168:Guinea Pigs; D006325:Heart Atria; D008722:Methods; D009119:Muscle Contraction / Q000187:drug effects*; D010424:Pentobarbital / Q000494:pharmacology*; D011188:Potassium / Q000494:pharmacology*
D010424:Pentobarbital; D011188:Potassium