Biomaterial Database

Physical dependence on meprobamate after repeated oral administration in rats. 1983

H Nakamura, and M Shimizu

The physical dependence potential of meprobamate (MPB) was compared with that of phenobarbital (PHB) and codeine (COD) to ascertain whether MPB produces definite physical dependence in the rat. Rats were treated orally with MPB (maintenance dosage = 800 mg/kg X 2/day), PHB (100 X 2) or COD (50 X 2) twice a day (10:00 a.m. and 5:00 p.m.) for a total of 21 days; the treatment was ceased for 3 days after administration for 7 days, and the last dosing was performed on day 27. During intoxication and after the withdrawal, the MPB treated rats exhibited behaviour and withdrawal signs similar to those seen in the PHB treated rats, but not the COD treated rats. After withdrawal of drugs, definite weight loss was observed in all the rats given drugs, and the recovery of the MPB and PHB treated rats was clearly later than that of the COD treated rats. A long-lasting increase in rectal temperature was observed after the withdrawal in the MPB and PHB treated rats; a decrease was seen in the COD treated rats. From these results, it is concluded that definite physical dependence on MPB, similar to that on PHB but different from that on COD, was developed after repeated oral administration for a total of 21 days in the rat.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008620	Meprobamate	A carbamate with hypnotic, sedative, and some muscle relaxant properties, although in therapeutic doses reduction of anxiety rather than a direct effect may be responsible for muscle relaxation. Meprobamate has been reported to have anticonvulsant actions against petit mal seizures, but not against grand mal seizures (which may be exacerbated). It is used in the treatment of ANXIETY DISORDERS, and also for the short-term management of INSOMNIA but has largely been superseded by the BENZODIAZEPINES. (From Martindale, The Extra Pharmacopoeia, 30th ed, p603)	Dapaz,Equanil,Meprospan,Miltown,Méprobamate Richard,Tranmep,Visano
D010634	Phenobarbital	A barbituric acid derivative that acts as a nonselective central nervous system depressant. It potentiates GAMMA-AMINOBUTYRIC ACID action on GABA-A RECEPTORS, and modulates chloride currents through receptor channels. It also inhibits glutamate induced depolarizations.	Phenemal,Phenobarbitone,Phenylbarbital,Gardenal,Hysteps,Luminal,Phenobarbital Sodium,Phenobarbital, Monosodium Salt,Phenylethylbarbituric Acid,Acid, Phenylethylbarbituric,Monosodium Salt Phenobarbital,Sodium, Phenobarbital
D011919	Rats, Inbred Strains	Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations or by parent x offspring matings carried out with certain restrictions. This also includes animals with a long history of closed colony breeding.	August Rats,Inbred Rat Strains,Inbred Strain of Rat,Inbred Strain of Rats,Inbred Strains of Rats,Rat, Inbred Strain,August Rat,Inbred Rat Strain,Inbred Strain Rat,Inbred Strain Rats,Inbred Strains Rat,Inbred Strains Rats,Rat Inbred Strain,Rat Inbred Strains,Rat Strain, Inbred,Rat Strains, Inbred,Rat, August,Rat, Inbred Strains,Rats Inbred Strain,Rats Inbred Strains,Rats, August,Rats, Inbred Strain,Strain Rat, Inbred,Strain Rats, Inbred,Strain, Inbred Rat,Strains, Inbred Rat
D001831	Body Temperature	The measure of the level of heat of a human or animal.	Organ Temperature,Body Temperatures,Organ Temperatures,Temperature, Body,Temperature, Organ,Temperatures, Body,Temperatures, Organ
D001835	Body Weight	The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms.	Body Weights,Weight, Body,Weights, Body
D003061	Codeine	An opioid analgesic related to MORPHINE but with less potent analgesic properties and mild sedative effects. It also acts centrally to suppress cough.	Morphinan-6-ol, 7,8-didehydro-4,5-epoxy-3-methoxy-17-methyl-, (5alpha,6alpha)-,Ardinex,Codeine Phosphate,Isocodeine,N-Methylmorphine,N Methylmorphine
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000091402	Prohibitins	Ubiquitously expressed conserved proteins associated with multiple functions including APOPTOSIS; CELL PROLIFERATION, regulations of various immune and mitochondrial functions, and cellular stress responses. Prohibitin 1 and prohibitin 2 form a ring-shaped complex in the INNER MITOCHONDRIAL MEMBRANE.	Prohibitin
D000284	Administration, Oral	The giving of drugs, chemicals, or other substances by mouth.	Drug Administration, Oral,Administration, Oral Drug,Oral Administration,Oral Drug Administration,Administrations, Oral,Administrations, Oral Drug,Drug Administrations, Oral,Oral Administrations,Oral Drug Administrations