title: Methods for investigating barbiturate tolerance.
mesh_terms: D000818:Animals; D001463:Barbiturates / Q000494:pharmacology*; D004361:Drug Tolerance; D008099:Liver / Q000201:enzymology; D008722:Methods; D051381:Rats; D012890:Sleep / Q000187:drug effects
chemical_list: D001463:Barbiturates