Tizanidine (Zanaflex) and Ketamine Therapy | Tovani Health
Zanaflex (Tizanidine) — Alpha-2 agonist (muscle relaxant)
Verdict at Tovani Health
Compatible; alpha-2 mechanism adds hypotension to the sedation stacking.
Tizanidine and ketamine are compatible. Tizanidine is sedating and lowers BP via alpha-2 agonism. The session-day window stacks on both axes. We monitor BP and have you stand slowly after sessions.
If you take Zanaflex regularly and are considering at-home ketamine therapy, the combination is safe with monitoring or dose adjustment. This page covers the brief pharmacologic context and what we do at intake.
How Zanaflex interacts with ketamine
Tizanidine is a central alpha-2 agonist similar to clonidine and guanfacine. Sedation and orthostatic hypotension are the dominant side effects.
What we do at intake
Disclose dose and timing. Morning sessions if you take it at bedtime. We check BP closely.
Bottom line
Tizanidine and ketamine are compatible. Tizanidine is sedating and lowers BP via alpha-2 agonism. The session-day window stacks on both axes. We monitor BP and have you stand slowly after sessions.
Frequently Asked Questions
Is tizanidine safer than cyclobenzaprine for KAP?
Different profile. Tizanidine adds BP considerations; cyclobenzaprine adds serotonergic ones. Neither is contraindicated.
Ready to find out if at-home ketamine fits your situation?
We’ll note that you’re on Zanaflex (Tizanidine) at intake. The eligibility check takes 5 minutes and gives you an honest answer about whether at-home ketamine fits your specific situation.
FL and NJ residents only. Benjamin Soffer, DO — Tovani Health.
Sources
The verdict and clinical guidance on this page are based on the following peer-reviewed literature and FDA prescribing information.
- Ketamine: A Review of Clinical Pharmacokinetics and Pharmacodynamics in Anesthesia and Pain Therapy. Peltoniemi MA, Hagelberg NM, Olkkola KT, Saari TI.. Clinical Pharmacokinetics. 2016. PMID: 27028535
Comprehensive clinical pharmacokinetics/pharmacodynamics review of ketamine including CYP-mediated drug interactions (CYP3A4, CYP2B6).
Clinically reviewed
Reviewed by Benjamin Soffer, DO on May 16, 2026. Dr. Soffer is a board-certified physician (American Board of Internal Medicine) licensed in Florida and New Jersey, prescribing at-home ketamine therapy through Tovani Health.
This page is general information about how this medication interacts with at-home ketamine therapy at Tovani Health. It is not a substitute for medical advice from your prescribing physician about your specific situation. Always discuss medication changes with the doctor who prescribed them.