Flexeril is a brand name for the drug cyclobenzaprine, which is a muscle relaxant. It’s typically prescribed to relieve muscle spasms caused by musculoskeletal conditions, such as back pain or injuries.
Key Facts:
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How it works: Cyclobenzaprine works by acting on the central nervous system (specifically the brainstem) to reduce muscle tone and spasms. It’s not a direct muscle relaxant, but rather affects nerve signals.
- Commonly prescribed for:
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- Muscle spasms
- Fibromyalgia (sometimes, off-label)
- Short-term relief (usually not recommended for more than 2-3 weeks)
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Form: Usually taken as a tablet (5 mg, 10 mg), sometimes extended-release capsules.
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Side effects may include:
- Drowsiness
- Dizziness
- Dry mouth
- Fatigue
Important Notes:
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- Not recommended for long-term use, as its effectiveness beyond a couple of weeks isn’t well established.
- It can interact with alcohol, other CNS depressants, and MAO inhibitors (dangerously).
- Brand name Flexeril has been mostly discontinued in the U.S., but generic cyclobenzaprine is still widely available.