- This medicine may raise the chance of liver problems. Sometimes, liver problems have been deadly. This may happen at any time but most of the time has happened between the 3rd and 12th month of treatment. The chance is greatest in women, patients older than 35 years of age, and patients taking other drugs. The chance is also greater when Dantrium (dantrolene injection) is used in high doses, even for a short time. Your doctor will be watching your liver tests. This medicine must not be used for reasons other than for what it was given to you.
- Have blood work checked as you have been told by the doctor. Talk with the doctor.
Uses of Dantrium:
- It is used to treat or prevent a health problem called malignant hyperthermia.
What do I need to tell my doctor BEFORE I take Dantrium?
- If you have an allergy to dantrolene or any other part of Dantrium (dantrolene injection).
- If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
- If you have liver disease.
- If you are breast-feeding. Do not breast-feed while you take Dantrium (dantrolene injection).
- If you are taking any of these drugs: Diltiazem or verapamil.
This is not a list of all drugs or health problems that interact with Dantrium (dantrolene injection).
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take Dantrium (dantrolene injection) with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
What are some things I need to know or do while I take Dantrium?
- Tell all of your health care providers that you take Dantrium (dantrolene injection). This includes your doctors, nurses, pharmacists, and dentists.
- If you were given Dantrium (dantrolene injection) before or during surgery, signs of muscle weakness may last after surgery. This includes weak grip strength or weak leg muscles. Dizziness may also happen. These effects may last for up to 48 hours. Avoid driving and doing other tasks or actions that call for you to be alert during this time and until you see how Dantrium (dantrolene injection) affects you.
- You may need help with standing and walking until your strength is back to normal.
- Be careful eating meals on the day Dantrium (dantrolene injection) was given. Trouble swallowing and choking have happened. Talk with the doctor.
- You will be watched closely by your doctor.
- Talk with your doctor before you drink alcohol or use other drugs and natural products that slow your actions.
- You may get sunburned more easily. Avoid sun, sunlamps, and tanning beds. Use sunscreen and wear clothing and eyewear that protects you from the sun.
- Very bad and sometimes deadly allergic side effects have rarely happened. Talk with your doctor.
- If you are 65 or older, use Dantrium (dantrolene injection) with care. You could have more side effects.
- Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using Dantrium (dantrolene injection) while you are pregnant.
How is this medicine (Dantrium) best taken?
Use Dantrium (dantrolene injection) as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- It is given as a shot into a vein.
What do I do if I miss a dose?
- Call your doctor to find out what to do.
See also: Dosage Information (in more detail)
What are some side effects that I need to call my doctor about right away?
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Signs of liver problems like dark urine, feeling tired, not hungry, upset stomach or stomach pain, light-colored stools, throwing up, or yellow skin or eyes.
- Trouble swallowing.
- Shortness of breath.
- This medicine may cause tissue damage if the drug leaks from the vein. Tell your nurse if you have any redness, burning, pain, swelling, blisters, skin sores, or leaking of fluid where the drug is going into your body.
What are some other side effects of Dantrium?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Feeling sleepy.
- Upset stomach.
- Change in voice.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
See also: Side effects (in more detail)
If OVERDOSE is suspected:
If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
How do I store and/or throw out Dantrium?
- If you need to store Dantrium (dantrolene injection) at home, talk with your doctor, nurse, or pharmacist about how to store it.
Consumer Information Use and Disclaimer
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else's drugs.
- Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
- Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
- Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about Dantrium (dantrolene injection), please talk with your doctor, nurse, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
Disclaimer: This information should not be used to decide whether or not to take Dantrium (dantrolene injection) or any other medicine. Only the healthcare provider has the knowledge and training to decide which medicines are right for a specific patient. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about Dantrium (dantrolene injection). It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to Dantrium (dantrolene injection). This information is not specific medical advice and does not replace information you receive from the healthcare provider. You must talk with the healthcare provider for complete information about the risks and benefits of using Dantrium (dantrolene injection).
Review Date: March 7, 2018
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- Drug class: skeletal muscle relaxants