Phenobarbital Oral Solution and Valbenazine
Determining the interaction of Phenobarbital Oral Solution and Valbenazine and the possibility of their joint administration.
In the database of official manuals used in the service creation an interaction registered by statistical results of studies was found, which can either lead to negative consequences for the patient health or strengthen a mutual positive effect. A doctor should be consulted to address the issue of joint drug administration.
Consumer:PHENobarbital may reduce the blood levels and effects of valbenazine. Contact your doctor if your symptoms worsen or your condition changes during treatment with these medications. Your doctor may be able to prescribe alternatives that do not interact, or you may need a dose adjustment or more frequent monitoring to safely use both medications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
Professional:GENERALLY AVOID: Coadministration of valbenazine with strong CYP450 3A4 inducers may decrease the plasma concentrations and therapeutic effects of valbenazine and its active metabolite, which are substrates of the isoenzyme. The proposed mechanism is induction of CYP450 3A4-mediated metabolism of valbenazine.
MANAGEMENT: The use of valbenazine with strong CYP450 3A4 inducers should generally be avoided. If concomitant use is required, caution and close clinical and laboratory monitoring are recommended. Dosage adjustments may be required whenever a strong CYP450 3A4 inducer is added to or withdrawn from therapy. Alternative treatment may be considered if an interaction is suspected.
- "Product Information. Ingrezza (valbenazine)." Neurocrine Biosciences, Inc., San Diego, CA.
Generic Name: phenobarbital
Brand name: Solfoton, Luminal
Synonyms: Phenobarbital, PHENobarbital
In the course of checking the drug compatibility and interactions, data from the following reference sources was used: Drugs.com, Rxlist.com, Webmd.com, Medscape.com.
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