title: Central inhibitory activity of the aqueous extract of Crinum giganteum.
abstract: The aqueous extract of Crinum giganteum given intraperitoneally at doses of 6.25, 12.5 and 25 mg/kg in rats prolonged the duration of pentobarbital sleeping time and in mice reduced spontaneous motor activity, decreased the exploratory activity and attenuated amphetamine-induced stereotype behavior. The intraperitoneal and oral preliminary LD(50) in mice were found to be 627 and 1468 mg/kg, respectively. The data obtained suggest that the aqueous extract of C. giganteum contains some biologically active principles with sedative activity.
authors.affiliation: Department of Pharmacology and Toxicology, National Institute for Pharmaceutical Research and Development, Idu Industrial Area P.M.B. 21, Garki, Abuja, FCT, Nigeria. samsonamos@yahoo.co.uk
authors.forename: S
authors.initials: S
authors.lastname: Amos
authors.forename: L
authors.initials: L
authors.lastname: Binda
authors.forename: P
authors.initials: P
authors.lastname: Akah
authors.forename: C
authors.initials: C
authors.lastname: Wambebe
authors.forename: K
authors.initials: K
authors.lastname: Gamaniel
mesh_terms: D000284:Administration, Oral; D000661:Amphetamine; D000818:Animals; D031407:Crinum; D004305:Dose-Response Relationship, Drug; D005260:Female; D006993:Hypnotics and Sedatives / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D007274:Injections, Intraperitoneal; D007928:Lethal Dose 50; D008297:Male; D051379:Mice; D009043:Motor Activity / Q000187:drug effects; D010424:Pentobarbital; D008517:Phytotherapy; D010936:Plant Extracts / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D051381:Rats; D017208:Rats, Wistar; D012890:Sleep / Q000187:drug effects; D013239:Stereotyped Behavior / Q000187:drug effects
chemical_list: D006993:Hypnotics and Sedatives; D010936:Plant Extracts; D000661:Amphetamine; D010424:Pentobarbital