Cyclobenzaprine is used for:
Treating muscle spasms caused by painful muscle conditions. It should be used along with rest and physical therapy. It may also be used for other conditions as determined by your doctor.
Cyclobenzaprine is a muscle relaxant. It works in parts of the brain and nervous system to help reduce muscle spasms.
Do NOT use Cyclobenzaprine if:
- you are allergic to any ingredient in Cyclobenzaprine
- you have an overactive thyroid, moderate to severe liver problems, or certain heart problems (eg, irregular heartbeat, congestive heart failure, heart block, conduction problems), or if you have recently had a heart attack
- you are taking or have taken a monoamine oxidase inhibitor (MAOI) (eg, phenelzine, rasagiline) in the last 14 days
Before using Cyclobenzaprine :
Some medical conditions may interact with Cyclobenzaprine . Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:
- if you are pregnant, planning to become pregnant, or are breast-feeding
- if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
- if you have allergies to medicines, foods, or other substances
- if you have a history of liver problems, heart problems, cerebral palsy, brain or spinal cord disease, or stroke
- if you have a history of glaucoma, increased pressure in the eye, or trouble urinating
Some MEDICINES MAY INTERACT with Cyclobenzaprine . Tell your health care provider if you are taking any other medicines, especially any of the following:
- MAOIs (eg, phenelzine, rasagiline) because serious, sometimes fatal reactions, including high fever and severe seizures, may occur
- Tramadol because the risk of seizures may be increased
- Droperidol or fluoxetine because severe heart problems, including irregular heartbeat, may occur
- Anticholinergics (eg, methscopolamine, benztropine), barbiturates (eg, phenobarbital), cimetidine, fluconazole, fluvoxamine, mibefradil, naproxen, or phenothiazines (eg, chlorpromazine) because they may increase the risk of Cyclobenzaprine 's side effects
- Carbamazepine because it may decrease Cyclobenzaprine 's effectiveness or increase the risk of Cyclobenzaprine 's side effects
- Guanethidine or guanfacine because their effectiveness may be decreased by Cyclobenzaprine
- Sympathomimetics (eg, albuterol, epinephrine, phenylephrine) because their effectiveness may be decreased or the risk of their side effects may be increased by Cyclobenzaprine
How to use Cyclobenzaprine :
Use Cyclobenzaprine as directed by your doctor. Check the label on the medicine for exact dosing instructions.
- Take Cyclobenzaprine by mouth with or without food. If stomach upset occurs, take with food to reduce stomach irritation.
- Do not suddenly stop taking Cyclobenzaprine without checking with your doctor.
- If you miss a dose of Cyclobenzaprine , take it as soon as possible. If it is almost time for your next dose, skip the missed dose. Go back to your regular dosing schedule. Do not take 2 doses at once.
Important safety information:
- Cyclobenzaprine may cause drowsiness, dizziness, or blurred vision. These effects may be worse if you take it with alcohol or certain medicines. Use Cyclobenzaprine with caution. Do not drive or perform other possibly unsafe tasks until you know how you react to it.
- Do not drink alcohol or use medicines that may cause drowsiness (eg, sleep aids, muscle relaxers) while you are using Cyclobenzaprine ; it may add to their effects. Ask your pharmacist if you have questions about which medicines may cause drowsiness.
- Do NOT take more than the recommended dose or use for longer than 2 to 3 weeks without checking with your doctor.
- If your symptoms (eg, pain, tenderness, decreased range of motion) do not get better within 2 to 3 weeks or if they get worse, contact your doctor.
- Do not become overheated in hot weather or while you are being active; heatstroke may occur.
- If you experience dry mouth, use sugarless candy or gum, or melt bits of ice in your mouth. If dry mouth continues for more than 2 weeks, contact your dentist or doctor.
- Use Cyclobenzaprine with extreme caution in the ELDERLY; they may be more sensitive to its effects, especially confusion, hallucinations, and fast or irregular heartbeat.
- Cyclobenzaprine should be used with extreme caution in CHILDREN younger than 15 years old; safety and effectiveness in these children have not been confirmed.
- PREGNANCY and BREAST-FEEDING: If you become pregnant, contact your doctor. You will need to discuss the benefits and risks of using Cyclobenzaprine while you are pregnant. It is not known if Cyclobenzaprine is found in breast milk. If you are or will be breast-feeding while you use Cyclobenzaprine , check with your doctor. Discuss any possible risks to your baby.
Possible side effects of Cyclobenzaprine :
All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:
Seek medical attention right away if any of these SEVERE side effects occur:
Constipation; diarrhea; dizziness; drowsiness; dry mouth; fatigue; nausea; nervousness; stomach pain or upset.
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); chest pain; confusion; fainting; fast or irregular heartbeat; mental or mood changes; numbness of an arm or a leg; one-sided weakness; seizures; sudden severe stomach pain; severe dizziness or vomiting; speech or vision problems; trouble urinating; yellowing of the skin or eyes.