Please use this identifier to cite or link to this item: https://ahro.austin.org.au/austinjspui/handle/1/10796
Title: Pharmacokinetic comparison of a combination tablet of enalapril and hydrochlorothiazide with enalapril and hydrochlorothiazide tablets administered together and separately.
Austin Authors: Howes, L G;Conway, Elizabeth L;Phillips, P A;Broadbear, J;Drummer, Olaf H;Louis, William J 
Affiliation: Department of Clinical Pharmacology and Therapeutics, Austin Hospital, Heidelberg, Victoria, Australia
Issue Date: 9-Aug-1991
Publication information: Biopharmaceutics & Drug Disposition; 12(6): 447-55
Abstract: Enalapril and hydrochlorothiazide (HCT) are established single agent treatments for mild hypertension and cardiac failure and are a potent combination in more severe or resistant cases. We have compared the pharmacokinetics of enalaprilat (the active metabolite of enalapril) and HCT in a four-way comparison of a combination tablet of enalapril (10 mg)/HCT (25 mg) with a single dose of an enalapril tablet (10 mg), a single dose of a HCT tablet (25 mg) and simultaneous administration of separate tablets of enalapril (10 mg) and HCT (25 mg) in normotensive volunteers (n = 12, 21-26 years). Each subject received all four treatments and the study was conducted as a randomized, latin square, open design with at least 1 week washout between studies. Overall, HCT was bioequivalent under all conditions and enalaprilat was bioequivalent when given in combination with HCT either as one tablet or as two separate tablets. However, when given with HCT, the mean AUC and Cmax of enalaprilat were reduced up to 20 per cent compared with enalapril administered alone. This is unlikely to be of clinical significance as the differences did not reach statistical significance and the total enalaprilat excreted in the urine over 96 h was similar after all treatments.
Gov't Doc #: 1932608
URI: http://ahro.austin.org.au/austinjspui/handle/1/10796
URL: https://pubmed.ncbi.nlm.nih.gov/1932608
Type: Journal Article
Subjects: Adult
Drug Combinations
Enalapril.administration & dosage.pharmacokinetics
Humans
Hydrochlorothiazide.administration & dosage.pharmacokinetics
Tablets
Appears in Collections:Journal articles

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