Medically reviewed by Leigh Weddle, PharmD Key Takeaways Cyclobenzaprine, formerly called Flexeril, can make you feel sleepy for about six to eight hours after you take it.Avoid driving after taking ...

Cyclobenzaprine is a generic oral tablet prescribed for muscle spasms in adults and certain children. It’s typically taken three times per day for up to 3 weeks. The dosage can vary based on certain ...