Interaksi Fenitoin dan Risperidon
Fenitoin dan Risperidon: label peresepan Risperidon menguraikan interaksi yang biasanya memerlukan pemantauan, perubahan dosis, atau pemberian jarak antardosis.
Biasanya dapat dikelola dengan pemantauan atau perubahan dosis. Beri tahu apoteker Anda bahwa Anda menggunakan keduanya.
Apa kata label FDA
Dari label Risperidon (RISPERDAL CONSTA) · berlaku sejak 2025-11-05
Carbamazepine and other enzyme inducers decrease plasma concentrations of risperidone.
Carbamazepine and Other CYP 3A4 Enzyme Inducers Carbamazepine co-administration with oral RISPERDAL decreased the steady-state plasma concentrations of risperidone and 9-hydroxyrisperidone by about 50%.
Co-administration of other known CYP 3A4 enzyme inducers (e.g., phenytoin, rifampin, and phenobarbital) with risperidone may cause similar decreases in the combined plasma concentrations of risperidone and 9-hydroxyrisperidone, which could lead to decreased efficacy of RISPERDAL CONSTA treatment.
At the initiation of therapy with carbamazepine or other known hepatic enzyme inducers, patients should be closely monitored during the first 4–8 weeks, since the dose of RISPERDAL CONSTA may need to be adjusted.
On discontinuation of carbamazepine or other CYP 3A4 hepatic enzyme inducers, the dosage of RISPERDAL CONSTA should be re-evaluated and, if necessary, decreased.
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