Meclizine and Tizanidine interaction
Meclizine and Tizanidine: both prescribing labels describe an interaction that usually calls for monitoring, a dose change, or spacing the doses.
Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.
What the FDA labels say
From the Meclizine (Meclizine Hydrochloride) label · effective 2026-06-12
• Coadministration of meclizine hydrochloride with other CNS depressants, including alcohol, may result in increased CNS depression ( 7.1 ).
CNS Depressants There may be increased CNS depression when meclizine hydrochloride is administered concurrently with other CNS depressants, including alcohol [see Warnings and Precautions (5.1) ] .
From the Tizanidine (Zanaflex) label · effective 2026-01-02
Sedation: Zanaflex may interfere with everyday activities; sedative effects of Zanaflex, alcohol, and other central nervous system (CNS) depressants are additive ( 5.3 , 7.4 )
Monitor patients who take Zanaflex with another CNS depressant for symptoms of excess sedation.
Alcohol and Other CNS Depressants Alcohol increases the exposure of tizanidine after administration of Zanaflex.
Monitor patients who take Zanaflex with another CNS depressant for symptoms of excess sedation [see Clinical Pharmacology ( 12.3 )] .
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.