BACLOFEN helps relieve spasms and cramping of muscles. It may be used to treat symptoms of multiple sclerosis or spinal cord injury. Compare GABA agonists.

Gablofen Side Effects

What should I watch for?

Tell your doctor or health care professional if your symptoms do not start to get better or if they get worse.

Do not suddenly stop taking your medicine. If you do, you may develop a severe reaction. If your doctor wants you to stop the medicine, the dose will be slowly lowered over time to avoid any side effects. Follow the advice of your doctor.

You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.

If you are taking another medicine that also causes drowsiness, you may have more side effects. Give your health care provider a list of all medicines you use. Your doctor will tell you how much medicine to take. Do not take more medicine than directed. Call emergency for help if you have problems breathing or unusual sleepiness.


Interactions with Medications

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor as soon as possible if any of the following side effects occur:

More common

Convulsions (seizures)

Less common or rare

Blurred vision or double vision


mental depression

muscle weakness

ringing or buzzing in ears

seeing, hearing, or feeling things that are not there

shortness of breath or troubled breathing

Symptoms of overdose

Convulsions (seizures)

dizziness, drowsiness, or lightheadedness

increased watering of the mouth

mental confusion

muscle weakness

nausea and/or vomiting

shortness of breath or troubled breathing

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common


difficult urination



nausea and/or vomiting

numbness or tingling in hands or feet


Less common

Clumsiness, unsteadiness, trembling, or other problems with muscle control


difficulty sleeping

dizziness or lightheadedness, especially when getting up from a lying or sitting position

dry mouth

frequent urge to urinate

irritation of the skin at the site where the pump is located

itching of the skin

sexual problems

slurred speech or other speech problems

swelling of ankles, feet, or lower legs

trembling or shaking

After you stop using this medicine, it may still produce some side effects that need attention. During this period of time, check with your doctor immediately if you notice the following side effects:

Convulsions (seizures)

facial flushing, headache, increased sweating, or slow heartbeat

increased muscle spasms

seeing, hearing, or feeling things that are not there

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

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