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  • Title: Sertindole: new drug. Another "atypical" neuroleptic; QT prolongation.
    Journal: Prescrire Int; 2007 Apr; 16(88):59-62. PubMed ID: 17458045.
    Abstract:
    (1) The first-line drug for the treatment of schizophrenic disorders is a neuroleptic such as haloperidol. Amisulpride may be preferable when haloperidol causes unacceptable neurological reactions. Overall, the risk-benefit balance of more recent, so-called atypical neuroleptics is no better. (2) Sertindole, a neuroleptic, was first marketed in 1996 in several European countries before being withdrawn two years later because of numerous cardiac adverse effects. It has once again been approved and should soon be available on the French market. (3) Two comparative double-blind trials suggest that a daily sertindole dose of 24 mg is about as effective as 10 mg of haloperidol. Sertindole was no more effective than risperidone in a trial comparing these two drugs. (4) Like other 'atypical' neuroleptics, sertindole has few short-term neurological adverse effects (extrapyramidal syndrome) at the doses used in clinical trials. However, it causes weight gain. Sertindole also has alpha blocking properties, which can cause postural hypotension and reduce ejaculate volume; it also has atropinic effects (constipation, dry mouth, etc.). (5) Sertindole provokes a dose-dependent increase in the QT interval more frequently than haloperidol in comparative trials, and apparently more frequently than other 'atypical' neuroleptics such as risperidone and olanzapine. Sertindole has been suspected of increasing cardiovascular mortality but this has not been established. (6) Sertindole is metabolised by cytochrome P450 isoenzymes CYP 2D6 and CYP 3A4, hence a high risk of pharmacokinetic interactions. (7) In practice, when haloperidol has to be withdrawn because of adverse effects, especially neurological reactions, it is better to continue to resort to amisulpride, for example, with close monitoring of adverse effects, rather than expose patients to the potential dangers of sertindole.
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