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Uses of Flexeril

Flexeril is a muscle relaxant prescribed to relieve muscle spasms resulting from injuries such as sprains, strains, or pulls. Combined with rest and physical therapy, Flexeril provides relief of muscular stiffness and pain.

How to take Flexeril

Flexeril may be taken with or without food.
Flexeril should be used only for short periods (no more than 3 weeks). Since the type of injury that Flexeril treats should improve in a few weeks, there is no reason to use it for a longer period.
Flexeril may cause dry mouth. Sucking a hard candy, chewing gum, or melting ice chips in your mouth can provide temporary relief.

Side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking Flexeril.

More common side effects may include: 
Dizziness, drowsiness, dry mouth

Less common or rare side effects may include: 
Abnormal heartbeats, abnormal sensations, abnormal thoughts or dreams, aggressive behavior, agitation, anxiety, bloated feeling, blurred vision, confusion, constipation, convulsions, decreased appetite, depressed mood, diarrhea, difficulty falling or staying asleep, difficulty speaking, disorientation, double vision, excitement, fainting, fatigue, fluid retention, gas, hallucinations, headache, heartburn, hepatitis, hives, increased heart rate, indigestion, inflammation of the stomach, itching, lack of coordination, liver diseases, loss of sense of taste, low blood pressure, muscle twitching, nausea, nervousness, palpitations, paranoia, rash, ringing in the ears, severe allergic reaction, stomach and intestinal pain, sweating, swelling of the tongue or face, thirst, tingling in hands or feet, tremors, unpleasant taste in the mouth, urinating more or less than usual, vague feeling of bodily discomfort, vertigo, vomiting, weakness, yellow eyes and skin

Problems such as confusion or hallucinations are more likely in older adults.

You should not take Flexeril if you have recently had a heart attack or if you have congestive heart failure, or suffer from irregular heartbeat.

You should not take this drug if you are taking an antidepressant drug known as an MAO inhibitor (such as Nardil or Parnate) or have taken an MAO inhibitor within the last 2 weeks. Also avoid Flexeril if you have ever had an allergic reaction to it, or if your thyroid gland is overactive.

Serious, potentially fatal reactions may occur if you take Flexeril with an antidepressant drug known as an MAO inhibitor (such as Nardil, Parnate) or if it has been less than 2 weeks since you last took an MAO inhibitor. You should closely follow your doctor's advice regarding discontinuation of MAO inhibitors before taking Flexeril.
Avoid alcoholic beverages while taking Flexeril.
If Flexeril is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Flexeril with the following: 
Barbiturates such as phenobarbital 
Guanethidine and other high blood pressure drugs 
Other drugs that slow the central nervous system, such as Halcion and Xanax 
Tramadol (Ultram)

Generic name: Cyclobenzaprine hydrochloride 

Flexeril is not a substitute for the physical therapy, rest, or exercise that your doctor orders for proper healing. Although Flexeril relieves the pain of strains and sprains, it is not useful for other types of pain.

Take it as soon as you remember, if it is within an hour or so of your scheduled time. If you do not remember until later, skip the missed dose and go back to your regular schedule. Do not take 2 doses at once.

The effects of Flexeril during pregnancy have not been adequately studied. If you are pregnant or plan to become pregnant, inform your doctor immediately. It is not known if Flexeril appears in breast milk. However, cyclobenzaprine is related to tricyclic antidepressants, and some of those drugs do appear in breast milk. If this medication is essential to your health, your doctor may advise you to discontinue breastfeeding your baby until your treatment is finished.

Store away from heat, light, and moisture.