Interaction entre Clobazam et Rispéridone

Prescribe the lowest effective dosage; avoid or minimize concomitant use of CNS depressants and other substances associated with abuse, misuse, and addiction (e.g., opioid analgesics, stimulants); and advise patients on the proper disposal of unused drug.

Risk may be increased with concomitant use of other CNS depressants ( 5.4 , 5.5 )

Potentiation of Sedation from Concomitant Use with Central Nervous System Depressants Since SYMPAZAN ® has a central nervous system (CNS) depressant effect, patients or their caregivers should be cautioned against simultaneous use with other CNS depressant drugs or alcohol, and cautioned that the effects of other CNS depressant drugs or alcohol may be potentiated…

Prescribers should monitor patients for somnolence and sedation, particularly with concomitant use of other central nervous system depressants.

CNS Depressants and Alcohol Concomitant use of SYMPAZAN ® with other CNS depressants may increase the risk of sedation and somnolence [see Warnings and Precautions (5.4) ].

Carbamazepine and other enzyme inducers decrease plasma concentrations of risperidone.

Fluoxetine and Paroxetine Fluoxetine (20 mg once daily) and paroxetine (20 mg once daily), CYP 2D6 inhibitors, have been shown to increase the plasma concentration of risperidone 2.5–2.8 fold and 3–9 fold respectively.

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.