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Nifedipine: kinetics and dynamics after single oral doses
- Source :
- Klinische Wochenschrift. 62(9)
- Publication Year :
- 1984
-
Abstract
- Serum nifedipine concentrations and hemodynamic changes were evaluated in ten healthy volunteers after a single 40-mg oral dose of nifedipine. Peak serum concentrations averaged 45 micrograms/l, attained 2.7 h after dosage. The mean elimination half-life was 5.9 h (range: 3-12 h). Blood pressure, ventricular rate, and echocardiographically-determined rate of circumferential fiber shortening did not differ between placebo and nifedipine trials. Five additional subjects ingested nifedipine once in the control state and on a second occasion with a standard breakfast. Coingestion of food delayed the peak serum nifedipine concentration but did not alter the area under the serum concentration curve. Thus the pharmacokinetic profile of nifedipine indicates that a three- or four-times-daily dose is, in general, appropriate in clinical practice. Completeness of absorption is not altered by coadministration with food. Adverse hemodynamic effects of single oral doses in healthy persons are not evident.
- Subjects :
- Oral dose
Adult
Male
Nifedipine
Kinetics
Hemodynamics
Administration, Oral
Blood Pressure
Absorption (skin)
Pharmacology
Placebo
Eating
Pharmacokinetics
Heart Rate
Drug Discovery
Medicine
Humans
Genetics (clinical)
Clinical Trials as Topic
business.industry
General Medicine
Fasting
Myocardial Contraction
Blood pressure
Molecular Medicine
Female
business
medicine.drug
Subjects
Details
- ISSN :
- 00232173
- Volume :
- 62
- Issue :
- 9
- Database :
- OpenAIRE
- Journal :
- Klinische Wochenschrift
- Accession number :
- edsair.doi.dedup.....1e195cac16769f4b0150c62a1e5b784b