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Flexeril Oral Product

University of California, Davis · FDA-approved active Small molecule

Flexeril (cyclobenzaprine) is a centrally acting muscle relaxant that reduces muscle spasms by depressing activity in the brainstem.

Flexeril (cyclobenzaprine) is a centrally acting muscle relaxant that reduces muscle spasms by depressing activity in the brainstem. Used for Acute muscle spasm and pain associated with musculoskeletal conditions.

At a glance

Generic nameFlexeril Oral Product
Also known asCyclobenziparin
SponsorUniversity of California, Davis
Drug classCentrally acting muscle relaxant
ModalitySmall molecule
Therapeutic areaNeurology / Musculoskeletal
PhaseFDA-approved

Mechanism of action

Cyclobenzaprine works primarily through central nervous system depression, likely by enhancing the effects of norepinephrine and other neurotransmitters at the brainstem level. It does not directly relax skeletal muscle or affect the neuromuscular junction, but rather reduces motor neuron activity and muscle tone through central mechanisms. The exact molecular target remains incompletely characterized, but it is structurally related to tricyclic antidepressants.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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