» Articles » PMID: 6994983

Pharmacokinetics of Single Oral Doses of Nortriptyline in Depressed Elderly Hospital Patients and Young Healthy Volunteers

Overview
Specialty Pharmacology
Date 1980 Jul 1
PMID 6994983
Citations 10
Authors
Affiliations
Soon will be listed here.
Abstract

A single oral dose of 75mg nortriptyline was given to a group of 20 depressed elderly patients in hospital. Subsequent plasma nortriptyline concentrations were used to calculate the half-life and clearance of the drug. These measurements were compared with those made previously in 17 healthy young volunteer subjects. Plasma nortriptyline half-life was longer and clearance slower (p < 0.002) in the elderly group than in the volunteers. There was no correlation of age with either of these parameters within the 2 groups, and no differences in nortriptyline pharmacokinetics could be detected between the male and female volunteer subjects. The possible reasons for these findings and their clinical consequences are discussed.

Citing Articles

Pharmacokinetics of antidepressants in patients with hepatic impairment.

Mauri M, Fiorentini A, Paletta S, Altamura A Clin Pharmacokinet. 2014; 53(12):1069-81.

PMID: 25248846 DOI: 10.1007/s40262-014-0187-5.


Free drug metabolic clearance in elderly people.

Butler J, Begg E Clin Pharmacokinet. 2008; 47(5):297-321.

PMID: 18399712 DOI: 10.2165/00003088-200847050-00002.


Bioavailability prediction based on molecular structure for a diverse series of drugs.

Turner J, Maddalena D, Agatonovic-Kustrin S Pharm Res. 2004; 21(1):68-82.

PMID: 14984260 DOI: 10.1023/b:pham.0000012154.09631.26.


Population pharmacokinetics and pharmacodynamics: potential use for gathering dose-concentration-response.

Jerling M Eur J Drug Metab Pharmacokinet. 1996; 21(2):113-21.

PMID: 8839684 DOI: 10.1007/BF03190259.


Clinical pharmacokinetics of antidepressants in the elderly. Therapeutic implications.

von Moltke L, Greenblatt D, Shader R Clin Pharmacokinet. 1993; 24(2):141-60.

PMID: 8471078 DOI: 10.2165/00003088-199324020-00004.


References
1.
Vestal R . Drug use in the elderly: a review of problems and special considerations. Drugs. 1978; 16(4):358-82. DOI: 10.2165/00003495-197816040-00004. View

2.
Crome P, Dawling S, Braithwaite R, Masters J, Walkey R . Effect of activated charcoal on absorption of nortriptyline. Lancet. 1977; 2(8050):1203-5. DOI: 10.1016/s0140-6736(77)90440-8. View

3.
Hurwitz N . Predisposing factors in adverse reactions to drugs. Br Med J. 1969; 1(5643):536-9. PMC: 1982240. DOI: 10.1136/bmj.1.5643.536. View

4.
Wilkinson G, SHAND D . Proceedings: Presystemic hepatic elimination. Acta Pharm Suec. 1975; 11(6):648-9. View

5.
Kragh-Sorensen P, Hansen C, BAASTRUP P, Hvidberg E . Self-inhibiting action of nortriptylin's antidepressive effect at high plasma levels: a randomized double-blind study controlled by plasma concentrations in patients with endogenous depression. Psychopharmacologia. 1976; 45(3):305-12. DOI: 10.1007/BF00421145. View