Baclofen

About Baclofen

The label says baclofen can inhibit reflexes at the spinal level, though its precise mechanism is not fully known. It is labeled for spasticity from multiple sclerosis, particularly flexor spasms with pain, clonus and muscle rigidity, and may be of some value in spinal cord injuries and diseases; patients should have reversible spasticity, so treatment can help restore function. It is not labeled for muscle spasm from rheumatic disorders, and the tablet label says its effectiveness in stroke, cerebral palsy and Parkinson’s disease has not been established. Safety and effectiveness have not been established under age 12. Treatment starts at 5 mg three times a day and rises by 5 mg per dose every three days to 20 mg three times a day, adjusted to response, with a maximum of 80 mg a day. The kidneys clear it largely unchanged, so kidney impairment may call for a lower dose.

Oral baclofen has no boxed warning, but stopping it suddenly has caused hallucinations and seizures, and newer labels add high fever, confusion, rebound spasticity and muscle rigidity that in rare cases advanced to muscle breakdown, organ failure and death; unless a serious reaction calls for faster withdrawal, the dose is reduced slowly. Drowsiness is common and adds to the effects of alcohol and other sedatives. The labels advise caution after a stroke, where it was poorly tolerated; with psychotic disorders, schizophrenia or confusion; with autonomic dysreflexia; with epilepsy, since seizure control can worsen; and when spasticity helps a person stand or balance. Ovarian cysts were found in some women with multiple sclerosis taking it, and most went away during treatment. Drowsiness, dizziness and weakness are the most common side effects.

Babies whose mothers took oral baclofen throughout pregnancy have had withdrawal symptoms, such as increased muscle tone, tremor, jitteriness and seizures, hours to days after birth, so the labels advise tapering and stopping before delivery when feasible. The newer labels say baclofen is present in breast milk and a breastfed baby can have withdrawal when the mother stops it or stops nursing. The liquids differ in strength; the Ozobax DS label asks prescribers to write each dose in milligrams and milliliters, and doses are measured with an oral syringe or other calibrated device. The FDA lists Lyvispah oral granules as discontinued, although a new label for a 10 mg packet was posted in September 2026. Intrathecal baclofen (Lioresal Intrathecal, Gablofen), delivered into the spinal fluid through an implanted pump that clinicians fill and adjust, is a separate product with a boxed warning about abrupt interruption.

Taking Baclofen

How to take it

Usually three times a day at evenly spaced times. Measure liquids with an oral syringe or other calibrated measuring device, never a household spoon, and shake Fleqsuvy well before each dose. Do not stop it on your own.

If you miss a dose

Take it as soon as you remember, unless it is almost time for the next dose; then skip the missed dose and carry on as usual. Do not take a double dose.

Storage

Tablets, Ozobax DS and Fleqsuvy at room temperature, away from excess heat and moisture, out of reach of children; store other solutions as their label directs. Throw Fleqsuvy away 2 months after first opening it.

Interactions to know about

Alcohol and other medicines that depress the central nervous system, such as opioids, benzodiazepines and sleep medicines, add to its drowsiness and sedation.

This summarizes the official prescribing information. Your prescriber’s and pharmacist’s instructions, and the leaflet that comes with your medicine, take priority.

Why the cash price for Baclofen differs from pharmacy to pharmacy

Generic 5, 10 and 20 mg tablets have many makers and the 15 mg strength few, so a dose may be quoted as one tablet or a combination.

The liquids have far fewer makers, and Ozobax DS and Fleqsuvy are brands. A liquid can be swapped at the counter only for a rated equivalent of the same form and concentration (Fleqsuvy and its generic, or Ozobax DS and the 10 mg per 5 mL generic solution).

Ways to pay less for Baclofen without insurance

• Ask for generic tablets, and compare quotes for your dose as one tablet and as smaller ones; the prescription must match the one you choose.
• If a liquid was prescribed and you can swallow tablets, ask the prescriber whether tablets would suit you.
• If Ozobax DS or Fleqsuvy is prescribed, ask whether its rated generic can be dispensed, and check that the prescription does not block substitution.
• Once your dose is settled, ask for a ninety-day supply, and refill early enough never to run out.
• Upload the prescription to Script Unlock so licensed pharmacies can quote their cash price. You pay the pharmacy directly.

Questions to ask your pharmacist about Baclofen

1. 1.How should my dose be lowered if I stop, and what if I run out?
2. 2.Does my kidney function call for a lower dose?
3. 3.Which liquid strength is mine, and how many milliliters is my dose?
4. 4.Can I drive or drink alcohol while I take it?

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