title: Penicillin and presynaptic inhibition in the amphibian spinal cord.
mesh_terms: D000200:Action Potentials; D000613:Aminobutyrates / Q000037:antagonists & inhibitors; D000818:Animals; D001001:Anura; D008564:Membrane Potentials / Q000187:drug effects; D010400:Penicillin G / Q000494:pharmacology*; D013116:Spinal Cord / Q000187:drug effects*; D009435:Synaptic Transmission / Q000187:drug effects*
chemical_list: D000613:Aminobutyrates; D010400:Penicillin G