What is baclofen?
Baclofen is a muscle relaxer and an antispasmodic agent.
Baclofen is used to treat muscle symptoms; such as spasm, pain and stiffness; caused by multiple sclerosis, spinal cord injuries, or other spinal cord disorders. It is given intrathecally (directly into the spinal cord) or orally (by mouth).
Before taking this medicine
You should not use baclofen if you are allergic to it.
To make sure this medicine is safe for you, tell your doctor if you have ever had:
- kidney disease;
- epilepsy or other seizure disorder;
- Parkinson’s disease, cerebral palsy, or rheumatoid disorders;
- mental disorders such as schizophrenia or bipolar disorder;
- a stroke or blood clot; or
- if you also use a narcotic (opioid) medication.
Using baclofen may increase your risk of developing an ovarian cyst. Talk with your doctor about your specific risk.
Baclofen has not been studied in pregnant women. Tell your doctor if you are pregnant or if you become pregnant while using this medicine.
It is not known whether baclofen passes into breast milk or if it could harm a nursing baby. Tell your doctor you are breastfeeding before using baclofen.
Baclofen is not approved for use by anyone younger than 12 years old.
Side effects of Baclofen
Get emergency medical help if you have signs of an allergic reaction to baclofen: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have:
- weak or shallow breathing;
- confusion, hallucinations; or
- a seizure (convulsions).
Common baclofen side effects may include:
- drowsiness, dizziness, weakness, tired feeling;
- sleep problems (insomnia);
- nausea, constipation; or
- urinating more often than usual.