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l-Bunolol metabolism in rats: identification of urinary metabolites. 1978

F J Leinweber, and J M Szpiech, and F J Di Carlo

Urine collected for 24 hr from rats given a single oral dose of 3H-l-bunolol (10 mg/kg) was found to contain only 25.8% of the dose and more than 30 labeled compounds. Nine compounds were identified and quantified as follows: bunolol (0.35% of urinary tritium), bunolol glucuronide (5.12%), bunolol sulfate (0.08%), dihydrobunolol (0.08%), dihydrobunolol glucuronide (0.74%), dihydrobunolol sulfate (0.12%), hydroxydihydrobunolol (0.58%), beta-(5-oxytetralonyl)lactic acid (0.74%), and (5-oxytetralonyl) acetic acid glucuronide (1.12%). The total quantity of identified labeled compounds was only 2.3% of the dose and 8.9% of the urinary radioactivity.

UI MeSH Term Description Entries
D008297 Male Males
D002040 Levobunolol The L-Isomer of bunolol. AKBeta,Apo-Levobunolol,Betagan,Levobunolol Hydrochloride,Novo-Levobunolol,PMS-Levobunolol,Ultracortenol,Vistagan,W-7000A,ratio-Levobunolol,Apo Levobunolol,ApoLevobunolol,Novo Levobunolol,NovoLevobunolol,PMS Levobunolol,PMSLevobunolol,W 7000A,W7000A,ratio Levobunolol
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001711 Biotransformation The chemical alteration of an exogenous substance by or in a biological system. The alteration may inactivate the compound or it may result in the production of an active metabolite of an inactive parent compound. The alterations may be divided into METABOLIC DETOXICATION, PHASE I and METABOLIC DETOXICATION, PHASE II.
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus

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