Comparing Flexeril vs Klonopin
| Flexeril (cyclobenzaprine) | Klonopin (clonazepam) |
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| Flexeril (cyclobenzaprine) | Klonopin (clonazepam) |
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Prescription only
Flexeril is a muscle relaxant that may be used short-term in addition to rest and physical therapy to treat muscle spasms caused by musculoskeletal conditions. Sedation is a common side effect... View more |
Prescription only
Klonopin may be used in the treatment of panic disorder and certain types of seizure disorder. Sedation is the most common side effect and it can cause both physical and psychological dependence... View more |
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| More about Flexeril (cyclobenzaprine) | More about Klonopin (clonazepam) | ||||||||
| Ratings & Reviews | |||||||||
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Flexeril has an average rating of 6.1 out of 10 from a total of 238 ratings on Drugs.com. 47% of reviewers reported a positive effect, while 26% reported a negative effect. |
Klonopin has an average rating of 8.5 out of 10 from a total of 756 ratings on Drugs.com. 83% of reviewers reported a positive effect, while 10% reported a negative effect. |
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| Side Effects Experienced by Users Side effects are reported in Drugs.com user reviews and not clinically verified. | |||||||||
View all Flexeril side effects |
View all Klonopin side effects |
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| Drug Class | |||||||||
| Generic Availability | |||||||||
| Pricing and Coupons * Prices are without insurance | |||||||||
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We could not find an exact match for this medicine. Try searching the Price Guide directly. |
View all Klonopin prices |
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| Dosage Forms | |||||||||
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N/A |
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| Brand Names | |||||||||
| Other cyclobenzaprine brands include: Amrix, Comfort Pac with Cyclobenzaprine |
N/A |
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| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||
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72 hours |
40 hours |
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| CSA Schedule 1 View glossary of CSA terms | |||||||||
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Not a controlled drug
Is not subject to the Controlled Substances Act. |
Some potential for abuse
Has a low potential for abuse relative to those in schedule 3. It has a currently accepted medical use in treatment in the United States. Abuse may lead to limited physical dependence or psychological dependence relative to those in schedule 3. |
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| Pregnancy Category | |||||||||
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Category B
No proven risk in humans
See the full pregnancy warnings document. |
Category D
Positive evidence of risk
See the full pregnancy warnings document. |
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| Drug Interactions | |||||||||
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A total of 452 drugs are known to interact with Flexeril:
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A total of 533 drugs are known to interact with Klonopin:
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| Alcohol/Food/Lifestyle Interactions | |||||||||
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| Disease Interactions | |||||||||
| First Approval Date | |||||||||
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August 26, 1977 |
June 04, 1975 |
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| WADA Class View classifications | |||||||||
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N/A |
N/A |
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| More Information | |||||||||
| Patient Resources | |||||||||
| Professional Resources | |||||||||
| Related Treatment Guide | |||||||||
1 The Controlled Substances Act (CSA) schedule information displayed applies to substances regulated under federal law. There may be variations in CSA schedules between individual states.
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Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.