Drug Interactions between chlorpromazine and niraparib
This report displays the potential drug interactions for the following 2 drugs:
- chlorpromazine
- niraparib
Interactions between your drugs
chlorproMAZINE niraparib
Applies to: chlorpromazine and niraparib
Coadministration with niraparib may decrease the plasma concentrations of drugs that are substrates of the CYP450 1A2 isoenzyme. At high concentrations, niraparib is able to weakly induce CYP450 1A2. If niraparib is used in combination with substrates of CYP450 1A2, particularly those with a narrow therapeutic range (e.g., clozapine, theophylline, ropinirole), then monitoring for signs and symptoms of reduced exposure to the CYP450 1A2 substrate should be considered.
References
- (2023) "Product Information. Akeega (abiraterone-niraparib)." Janssen Biotech, Inc.
- (2023) "Product Information. Zejula (niraparib)." GlaxoSmithKline
- (2023) "Product Information. Zejula (niraparib)." GlaxoSmithKline Inc
- (2023) "Product Information. Akeega (abiraterone-niraparib)." Janssen Inc
- (2023) "Product Information. Zejula (niraparib)." GlaxoSmithKline Australia Pty Ltd
- (2023) "Product Information. Zejula (niraparib)." GlaxoSmithKline UK Ltd
Drug and food interactions
chlorproMAZINE food
Applies to: chlorpromazine
GENERALLY AVOID: Concurrent use of ethanol and phenothiazines may result in additive CNS depression and psychomotor impairment. Also, ethanol may precipitate dystonic reactions in patients who are taking phenothiazines. The two drugs probably act on different sites in the brain, although the exact mechanism of the interaction is not known.
MANAGEMENT: Patients should be advised to avoid alcohol during phenothiazine therapy.
References
- Lutz EG (1976) "Neuroleptic-induced akathisia and dystonia triggered by alcohol." JAMA, 236, p. 2422-3
- Freed E (1981) "Alcohol-triggered-neuroleptic-induced tremor, rigidity and dystonia." Med J Aust, 2, p. 44-5
Therapeutic duplication warnings
No warnings were found for your selected drugs.
Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.
See also
Drug Interaction Classification
Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. | |
No interaction information available. |
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
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