Cyclobenzaprine
Brand names: Flexeril, Amrix|Last verified: 2026-03-01
FAA Pathway: Do Not Issue (DNI) list
Cyclobenzaprine is on the FAA's DNI list. It is structurally related to tricyclic antidepressants and causes significant sedation. All centrally-acting muscle relaxants are disqualifying for aviation.
Related Resources
Pilot Tip
Always report all medications on your FAA medical application (Form 8500-8, Item 17a), even OTC medications. Failure to disclose is a far bigger issue than the medication itself.
Certification Details
Sources
- FAA Do Not Issue Table
Last verified: 2026-03-01
Frequently Asked Questions
Is Cyclobenzaprine allowed for pilots?
The FAA considers Cyclobenzaprine (Flexeril, Amrix) to be "Disqualifying" for medical certification purposes. Cyclobenzaprine is on the FAA's DNI list. It is structurally related to tricyclic antidepressants and causes significant sedation. All centrally-acting muscle relaxants are disqualifying for aviation.
What is the FAA status of Cyclobenzaprine?
Cyclobenzaprine has a status of "Disqualifying" under FAA medical certification policy. The certification pathway is: Do Not Issue (DNI) list.
Can I fly while taking Cyclobenzaprine?
Cyclobenzaprine is currently disqualifying for FAA medical certification. You cannot fly while taking this medication. A washout period and evaluation are typically required after discontinuation. Consult an AME or aviation attorney before making any medication changes.
Important Notice
The FAA does not publish a comprehensive list of “approved” medications. The information on this page represents our interpretation of publicly available FAA guidance and is provided for informational and educational purposes only. It does not constitute medical advice, legal advice, or a guarantee of certification outcome.
The primary issue with the FAA is always whether the underlying medical condition — not just the medication — is compatible with safe flight. You should only start, stop, or change medications after consulting your treating physician. Always consult with a qualified Aviation Medical Examiner (AME) for guidance specific to your situation. FAA policies are subject to change. ClearedMed is not affiliated with or endorsed by the FAA.