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The first step to understanding low back pain is appreciating the normal design (anatomy) of the tissues of this area of the body. Important structures of the low back that can be related to symptoms in this region include the bony lumbar spine (vertebrae, singular = vert...
Medical Editor: Melissa Conrad Stöppler, MD
Flexeril (cyclobenzaprine) is a muscle relaxant. Flexeril is available as a generic drug and is prescribed for the short-term relief of muscle spasms due to musculoskeletal conditions (strains, sprains, and other muscle injuries). The most common side effects of Flexeril may include drowsiness, dry mouth, fatigue, dizziness, and headache.
Flexeril is available as tablets to be taken orally. Flexeril (cyclobenzaprine) is closely related to the tricyclic antidepressants and therefore should not be prescribed with or within two weeks of taking monoamine oxidase (MAO) inhibitor drugs. Flexeril may increase the effects of alcohol, barbiturates, and other central nervous system depressants. There are no adequate studies on the use of Flexeril in pregnant women. It is not known if Flexeril is secreted in milk. However, because Flexeril is related to tricyclic antidepressants and some of these are excreted in breast milk, caution is advised in nursing mothers.
Our Flexeril Drug Center provides a comprehensive view of available drug information as well as related drugs, user reviews, supplements, and diseases and conditions.
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
FLEXERIL (cyclobenzaprine hcl) is indicated as an adjunct to rest and physical therapy for relief of muscle spasm associated with acute, painful musculoskeletal conditions.
Improvement is manifested by relief of muscle spasm and its associated signs and symptoms, namely, pain, tenderness, limitation of motion, and restriction in activities of daily living.
FLEXERIL (cyclobenzaprine hcl) should be used only for short periods (up to two or three weeks) because adequate evidence of effectiveness for more prolonged use is not available and because muscle spas...
Read the complete drug monograph for Flexeril »
Drug Description - Indications & Dosage - Side Effects & Drug Interactions - Warnings & Precautions - Contraindications - Medication Guide and More
What is Patient information?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop using cyclobenzaprine and call your doctor at once if you have any of these serious side effects:
Read the complete patient information for Flexeril »
Possible Side Effects - Images - What Is - How Should I Take It - What If I Miss a Dose - What Should I Avoid and More
What is Consumer information?
A concise overview of the drug for the patient or caregiver from First DataBank.
HOW TO USE: Take this medication by mouth usually 3 times a day, or as directed by your doctor. Dosage is based on your medical condition and response to therapy. Do not increase your dose or take it more often than prescribed because the risk of side effects may increase.
This medication is intended for short-term use, usually no longer than 3 weeks, unless otherwise direct...
Read the complete consumer information for Flexeril »
Warnings - Uses - How to Use - Side Effects - Precautions - Drug Interactions and More
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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