The majority of drugs have a low dissolution rate, which is a limiting step for their absorption. In this manuscript, solid dispersions (SD), solid self-microemulsifying drug delivery systems (S-SMEDDS) and solid self-nanoemulsifying drug delivery systems (S-SNEDDS) were evaluated as potential formulation strategies to increase the dissolution rate of carbamazepine. Influence of increased disso...

The morphology of crystals has an appreciable impact role on the physicochemical properties of drugs. Drug properties such as flowability, dissolution, hardness and bioavailability may be affected by crystallinity behaviours of drugs. The objective of this study was to achieve an improved physicomechanical property of carbamazepine powder through recrystallization from aqueous solutions at diff...

OBJECTIVE Vitiligo is a rare side effect of carbamazepine whose exact mechanism is unknown. The aim of this report is to describe a single case of vitiligo induced by carbamazepine. METHODS The case was a patient with Bipolar I disorder whose medications were changed from valproate to carbamazepine and who developed vitiligo after a short while. We followed the case for about four years when ...

We report the syndrome of inappropriate antidiuresis as a much earlier side-effect of carbamazepine administration in a 29-year Nigerian female patient with generalized tonic-elonic seizures. Although asymptomatic, the biochemical abnormality improved after discontinuation of carbamazepine. Hyponatraemia developed after rechallenge with controlled release carbamazepine. The authors suggest that...

Calcium channel antagonists have been shown to have an anticonvulsant activity in a variety of seizure models and also to potentiate the anticonvulsant activity of other standard antiepileptic drugs like carbamazepine, phenytoin and valporoate. A pharmacokinetic interaction may be involved in such potentiation. This cross over single dose study was carried out to find out if there was a pharmac...

BACKGROUND Combinations of olanzapine and carbamazepine are often used in clinical practice in the management of mania. AIMS To assess the efficacy and safety of olanzapine plus carbamazepine in mixed and manic bipolar episodes. METHOD Randomised, double-blind, 6-week trial of olanzapine (10-30 mg/day) plus carbamazepine (400-1200 mg/day; n=58) v. placebo plus carbamazepine (n=60) followed ...

BACKGROUND Clarithromycin was used to treat lower respiratory tract infection in several developmentally disabled men who were also taking carbamazepine for seizure disorder. METHODS We studied retrospectively the use of clarithromycin in 5 patients taking carbamazepine. Because a drug interaction was suspected, the carbamazepine dosage was decreased during treatment, and serum levels were me...

In six depressed epileptic patients stabilised on carbamazepine therapy, addition of the antidepressant agent viloxazine (300 mg/day for three weeks) induced a marked (average 55%) increase in steady-state plasma carbamazepine concentration. The concentration of the active metabolite carbamazepine-10,11-epoxide also increased during viloxazine therapy, but to a lesser extent (16%). In three pat...

In this study, we investigated whether components of pomegranate could inhibit CYP3A-mediated drug metabolism. The ability of pomegranate to inhibit the carbamazepine 10,11-epoxidase activity of CYP3A was examined using human liver microsomes, and pomegranate juice was shown to be a potent inhibitor of human CYP3A. Addition of 25 microl (5.0% v/v) of pomegranate juice resulted in almost complet...

in this paper, differences in porosity, compressive strength and tablet- forming ability of carbamazepine crystals agglomerated under similar condition, but subjected to different drying temperatures are reported. the agglomerates were prepared by spherical crystallization method and thereafter dried without agitation at different temperature. an increased drying temperature did not affect the ...