Lamotrigine-induced carbamazepine toxicity: an interaction with carbamazepine-10,11-epoxide.
Epilepsy Res
; 11(2): 147-50, 1992 Apr.
Article
em En
| MEDLINE
| ID: mdl-1618180
ABSTRACT
We report an interaction between lamotrigine (LTG), a new antiepileptic drug (AED), and carbamazepine (CBZ) and its primary metabolite CBZ-10,11-epoxide (CBZ-E) in 9 consecutive patients (5 male, 4 female, aged 19-31 years). After introduction of LTG (median daily dose 200 mg, range 100-300 mg) the mean serum CBZ-E concentration increased by 45% (P less than 0.01) and the CBZ-E/CBZ ratio increased by 19% (P less than 0.02). In 4 patients these changes were associated with clinical toxicity (dizziness, nausea, diplopia). The possibility of an increase in serum CBZ-E concentrations needs to be considered if toxicity symptoms develop when LTG is added to CBZ therapy.
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Base de dados:
MEDLINE
Assunto principal:
Triazinas
/
Carbamazepina
/
Anticonvulsivantes
Limite:
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Ano de publicação:
1992
Tipo de documento:
Article