Drugs >  Dantrolene
Dantrolene
Pronunciation
Brand Names
Therapeutic Categories
What key warnings should I know about before taking this medicine?
Reasons not to take this medicine
What is this medicine used for?
How does it work?
How is it best taken?
What do I do if I miss a dose?
What are the precautions when taking this medicine?
What are the common side effects of this medicine?
What should I monitor?
Reasons to call healthcare provider immediately
How should I store this medicine?
General statements

Pronunciation
(DAN troe leen)

Brand Names
Dantrium®

Therapeutic Categories
Skeletal Muscle Relaxant

What key warnings should I know about before taking this medicine?

  • This medicine can cause liver problems especially when high doses are used. The risk is greatest in females, patients older than 35 years of age, and patients taking other medicines. Your healthcare provider will be watching your liver tests (blood tests). Using the smallest dose possible decreases the risk of liver problems. Ask your healthcare provider about your dose. If you do not see an improvement in your symptoms in 45 days of use, ask healthcare provider if you can stop the medicine.


Reasons not to take this medicine

  • If you have an allergy to dantrolene or any other part of the medicine.
  • If spasticity helps you keep your balance.


What is this medicine used for?

  • This medicine is used for the treatment of pain caused by muscular-skeletal injury. It is used in combination with rest, physical therapy, pain medicine, and other therapies.


How does it work?

  • How dantrolene works is not known, but it relaxes parts of the nervous system.


How is it best taken?

  • Take with or without food. Take with food if this medicine causes an upset stomach.


What do I do if I miss a dose?

  • Take a missed dose as soon as possible.
  • If it is almost time for the next dose, skip the missed one. Return to your regular schedule.
  • Do not take a double dose or extra doses.


What are the precautions when taking this medicine?

  • If you are 65 or older, use this medicine with caution. Can cause severe drowsiness or dizziness.
  • Avoid alcohol (includes wine, beer, and liquor) and other medicines and herbs that slow your actions and reactions. This includes sedatives, tranquilizers, mood stabilizers, or pain medicine. Talk with healthcare provider.
  • Tell healthcare provider if you are allergic to any medicine. Make sure to tell about the allergy and how it affected you. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, throat; or any other symptoms involved.
  • Tell healthcare provider if you are pregnant or plan on getting pregnant.
  • Tell healthcare provider if you are breast-feeding.


What are the common side effects of this medicine?

  • Feeling sleepy or unable to think clearly. Avoid driving, doing other tasks or activities that require you to be alert until you see how this medicine affects you.
  • Dizziness is common. Rise slowly over several minutes from sitting or lying position. Be careful climbing stairs.
  • Nausea or vomiting. Small frequent meals, frequent mouth care, sucking hard candy, or chewing gum may help.


What should I monitor?

  • Pain relief. Is it better, worse, or about the same?


Reasons to call healthcare provider immediately

  • Signs of a life-threatening reaction. These include wheezing; tightness in the chest; fever; itching; bad cough; blue skin color; fits; swelling of face, lips, tongue, or throat.
  • Over sedation or feeling sleepy.
  • Any rash.
  • No improvement in condition or feeling worse.


How should I store this medicine?

  • Store in a tight container at room temperature.


General statements

  • Do not share your medicine with others and do not take anyone else's medicine.
  • Keep all medicine out of the reach of children and pets.
  • Keep a list of all your medicines (prescription, herbal/supplements, vitamins, over-the-counter) with you. Give this list to healthcare provider (doctor, nurse, pharmacist, physician assistant).
  • Talk with healthcare provider before starting any new medicine, including over-the-counter or natural products (herbs, vitamins).


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