dantrolene - oral, Dantrium (cont.)
USES: This medication is used to treat muscle tightness and cramping (spasms) caused by certain nerve disorders such as spinal cord injury, stroke, cerebral palsy, and multiple sclerosis. It works by relaxing the muscles. Dantrolene helps reduce muscle pain and stiffness, improves your ability to move around, and lets you do more of your daily activities.Dantrolene is also used with other treatments to prevent or treat special cases of high fever (malignant hyperthermia) related to anesthesia and surgery.OTHER This section contains uses of this drug that are not listed in the approved professional labeling for the drug but that may be prescribed by your health care professional. Use this drug for a condition that is listed in this section only if it has been so prescribed by your health care professional.This drug may also be used to treat a certain uncommon condition (neuroleptic malignant syndrome) involving muscle stiffness, fever, and fast heartbeat caused by psychiatric medications.
HOW TO USE: See also Warning section.Take this medication by mouth as directed by your doctor. For the treatment of long-term muscle tightness/spasms, your doctor may slowly increase your dose to lower your chance of side effects until the right dose for you is determined. The manufacturer recommends that you do not take more than 400 milligrams per day.Dosage is based on your medical condition, response to therapy, and in some cases weight. For the prevention and treatment of malignant hyperthermia, treatment lasts for several days.Take this medication regularly to get the most benefit from it. To help you remember, take it at the same times each day.
SIDE EFFECTS: See also Warning section.Drowsiness, dizziness, weakness, tiredness, nausea, and diarrhea may occur as your body adjusts to this medication and usually lessen after several days. Headache, constipation, slurred speech, and drooling may also occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.Tell your doctor immediately if any of these unlikely but serious side effects occur: sunburn (sun sensitivity), vision changes, black/tarry stools, vomit that looks like coffee grounds, mental/mood changes, trouble swallowing, problems with urination, severe/persistent constipation, seizures, fast heartbeat.Tell your doctor immediately if any of these rare but very serious side effects occur: easy bruising/bleeding, signs of infection (such as fever, chills, persistent sore throat), chest pain, swelling of the ankles/feet, trouble breathing.A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.In the US -Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Medically Reviewed by a Doctor on 4/16/2014
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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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