Effect of grapefruit juice and naringin on nisoldipine pharmacokinetics.
Clin Pharmacol Ther
; 54(6): 589-94, 1993 Dec.
Article
em En
| MEDLINE
| ID: mdl-8275614
ABSTRACT
The bioavailability of some dihydropyridine calcium antagonists can be markedly augmented by grapefruit juice and may involve the bioflavonoid naringin. The pharmacokinetics of nisoldipine coat-core tablet were studied in a Latin square-designed trial in which 12 healthy men were administered the drug with water, grapefruit juice, or encapsulated naringin powder at the same amount as that assayed in the juice. Compared with water, grapefruit juice increased the maximum concentration of nisoldipine to 406% +/- 73% (mean +/- SEM; range, 107% to 836%; p < 0.001), increased the area under the plasma concentration-time curve to 198% +/- 46% (range, 81% to 682%; p < 0.001), and reduced time to reach maximum nisoldipine concentration to 58% +/- 9% (range, 13% to 100%; p < 0.01), probably by inhibition of presystemic metabolism and possibly by enhancement of drug dissolution. The interaction could not be predicted from baseline pharmacokinetics with water and resulted in greater interindividual variability. The naringin capsule did not change nisoldipine pharmacokinetics. All treatments produced minor effects on supine blood pressure and heart rate, probably because subjects were normotensive. Current information supports the cautioning of patients about concomitant ingestion of grapefruit juice and nisoldipine.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Bebidas
/
Flavonoides
/
Nisoldipino
/
Citrus
/
Flavanonas
Tipo de estudo:
Clinical_trials
Limite:
Adolescent
/
Adult
/
Humans
/
Male
Idioma:
En
Revista:
Clin Pharmacol Ther
Ano de publicação:
1993
Tipo de documento:
Article
País de afiliação:
Canadá