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AMRIX is the first and only once-a-day muscle relaxer. AMRIX provides an effective and convenient treatment option for muscle spasm associated with acute painful musculoskeletal conditions.

  • Convenient Once-a-Day Treatment
    AMRIX offers the convenience of once-a-day treatment
  • Proven Effective
    AMRIX is an extended-release version of the most widely prescribed muscle relaxer in the U.S., cyclobenzaprine,2 which has a proven track record extending over 3 decades. AMRIX is for the relief of muscle spasm and its symptoms including pain, tenderness, and restricted movement1
  • AMRIX is Generally Well Tolerated1
    In clinical studies, most side effects were mild
  • Few Patients Stop Treatment Because of Feeling Sleepy
    With AMRIX, studies show that few patients stopped treatment because of feeling sleepy1

AMRIX® (Cyclobenzaprine Hydrochloride Extended-Release Capsules) is a prescription medicine to be used along with rest and physical therapy to help control muscle spasm associated with acute, painful musculoskeletal conditions. AMRIX should only be taken for short periods (up to two or three weeks). It should be taken at about the same time each day.

Certain medicines may cause serious or potentially life-threatening consequences when taken in combination with AMRIX, so tell your doctor if you are taking any medicines.

You should not use AMRIX if you:

  • Are sensitive to any of its ingredients
  • Are taking certain antidepressants, such as monoamine oxidase inhibitors (MAOIs)
  • Are 65 years old or older
  • Have liver problems
  • Have certain types of heart problems
  • Have an overactive thyroid

Before taking AMRIX, talk to your doctor about all of your medical conditions, including any history of heart problems, urinary problems, or glaucoma.

AMRIX may affect your ability to perform certain hazardous tasks, such as operating machinery or driving a motor vehicle, especially when used with alcohol or other sedatives.

Side effects of AMRIX may include dry mouth, dizziness, fatigue, nausea, upset stomach, constipation, and drowsiness. Click here for full Prescribing Information.

AMRIX is distributed by Cephalon and produced with Eurand Diffucaps® technology. For more information about AMRIX, please call Cephalon at 1-800-896-5855.