What is this medicine?
CYCLOBENZAPRINE (sye kloe BEN za preen) is a muscle relaxer. It is used to treat muscle pain, spasms, and stiffness.
How should I use this medicine?
Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. If this medicine upsets your stomach, take it with food or milk. Take your medicine at regular intervals. Do not take it more often than directed.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
What side effects may I notice from receiving this medicine?
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
fast, irregular heartbeat
unusually weak or tired
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
What may interact with this medicine?
Do not take this medicine with any of the following medications:
certain medicines for fungal infections like fluconazole, itraconazole, ketoconazole, posaconazole, voriconazole
MAOIs like Carbex, Eldepryl, Marplan, Nardil, and Parnate
narcotic medicines for cough
This medicine may also interact with the following medications:
antihistamines for allergy, cough and cold
certain medicines for anxiety or sleep
certain medicines for cancer
certain medicines for depression like amitriptyline, fluoxetine, sertraline
certain medicines for infection like alfuzosin, chloroquine, clarithromycin, levofloxacin, mefloquine, pentamidine, troleandomycin
certain medicines for irregular heart beat
certain medicines for seizures like phenobarbital, primidone
general anesthetics like halothane, isoflurane, methoxyflurane, propofol
local anesthetics like lidocaine, pramoxine, tetracaine
medicines that relax muscles for surgery
narcotic medicines for pain
other medicines that prolong the QT interval (cause an abnormal heart rhythm)
phenothiazines like chlorpromazine, mesoridazine, prochlorperazine
What if I miss a dose?
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
Where should I keep my medicine?
Keep out of the reach of children.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Keep container tightly closed. Throw away any unused medicine after the expiration date.
What should I tell my health care provider before I take this medicine?
They need to know if you have any of these conditions:
heart disease, irregular heartbeat, or previous heart attack
an unusual or allergic reaction to cyclobenzaprine, tricyclic antidepressants, lactose, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
What should I watch for while using this medicine?
Tell your doctor or health care professional if your symptoms do not start to get better or if they get worse.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.
If you are taking another medicine that also causes drowsiness, you may have more side effects. Give your health care provider a list of all medicines you use. Your doctor will tell you how much medicine to take. Do not take more medicine than directed. Call emergency for help if you have problems breathing or unusual sleepiness.
Your mouth may get dry. Chewing sugarless gum or sucking hard candy, and drinking plenty of water may help. Contact your doctor if the problem does not go away or is severe.
September 30, 2017