title: Effects of calcium-blocking agents and phosphodiesterase inhibitors on voltage-dependent conductances in Limulus photoreceptors.
mesh_terms: D015056:1-Methyl-3-isobutylxanthine / Q000494:pharmacology*; D000818:Animals; D002118:Calcium / Q000037:antagonists & inhibitors* / Q000378:metabolism*; D005711:Gallopamil / Q000494:pharmacology; D006737:Horseshoe Crabs; D008564:Membrane Potentials / Q000187:drug effects; D010208:Papaverine / Q000494:pharmacology*; D010775:Photic Stimulation; D010786:Photoreceptor Cells / Q000187:drug effects* / Q000378:metabolism; D011188:Potassium / Q000378:metabolism; D009435:Synaptic Transmission / Q000187:drug effects; D013806:Theophylline / Q000031:analogs & derivatives* / Q000494:pharmacology*
chemical_list: D005711:Gallopamil; D013806:Theophylline; D010208:Papaverine; D011188:Potassium; D002118:Calcium; D015056:1-Methyl-3-isobutylxanthine