Baclofen
Baclofen Oral tablet
What is this medicine?
BACLOFEN (BAK loe fen) helps relieve spasms and cramping of muscles. It may be used to treat symptoms of multiple sclerosis or spinal cord injury.
This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.
What should I tell my health care provider before I take this medicine?
They need to know if you have any of these conditions:
kidney disease
seizures
stroke
an unusual or allergic reaction to baclofen, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
breast-feeding
How should I use this medicine?
Take this medicine by mouth. Swallow it with a drink of water. Follow the directions on the prescription label. Do not take more medicine than you are told to take.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.
NOTE: This medicine is only for you. Do not share this medicine with others.
What if I miss a dose?
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
What may interact with this medicine?
alcohol
antihistamines
medicines for depression, anxiety, and other mental conditions
medicines for pain like codeine, oxycodone, tramadol, and propoxyphene
medicines for sleep
phenobarbital
This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.
What should I watch for while using this medicine?
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.
Baclofen can affect blood sugar levels. If you have diabetes, talk with your doctor or health care professional before you take the medicine.
You may get drowsy or dizzy when you first start taking the medicine or change doses. Do not drive, use machinery, or do anything that may be dangerous until you know how the medicine affects you. Stand or sit up slowly.
What side effects may I notice from receiving this medicine?
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
chest pain
hallucinations
seizure
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
confusion
difficulty sleeping
headache
nausea
This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Where should I keep my medicine?
Keep out of the reach of children.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Keep container tightly closed. Throw away any unused medicine after the expiration date.
Baclofen Solution for injection
What is this medicine?
BACLOFEN (BAK loe fen) is a muscle relaxer. It is used to treat severe spasms.
This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.
What should I tell my health care provider before I take this medicine?
They need to know if you have any of these conditions:
bleeding disorders
diabetes
mental illness
kidney disease
recent stroke
seizures
an unusual or allergic reaction to baclofen, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
breast-feeding
How should I use this medicine?
This medicine is for injection into the space around the spinal cord. It can be given by a health care professional in a clinic or hospital setting. Patients can also have a pump implanted into their back for a continuous infusion.
Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for children as young as 4 years old for selected conditions, precautions do apply.
Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.
NOTE: This medicine is only for you. Do not share this medicine with others.
What if I miss a dose?
It is important to keep your appointments to have this medicine administered or to refill your pump. If you cannot make your appointment, contact your health care provider to make other arrangements.
What may interact with this medicine?
alcohol
antihistamines
medicines for depression, anxiety, and other mental conditions
medicines for pain like codeine, oxycodone, tramadol, and propoxyphene
medicines for sleep
other medicines injected in the spine like morphine
phenobarbital
This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.
What should I watch for while using this medicine?
Visit your doctor for regular check ups. Tell your doctor if your symptoms do not get better or if you get worse.
Do not suddenly stop taking your medicine. If you do, you may develop a severe reaction. Contact your health care provider immediately if you notice any problems with your catheter (especially if it becomes disconnected), low volume in the pump, or low battery level. 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.
This medicine can affect blood sugar levels. If you have diabetes, talk with your doctor or health care professional before you take the medicine.
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.
What side effects may I notice from receiving this medicine?
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
breathing problems
changes in vision
chest pain
fast heartbeat
feeling faint or lightheaded, falls
hallucinations
mood or mental changes
problems with balance, talking, walking
ringing or buzzing in the ears
seizure
trouble passing urine or change in the amount of urine
unusually nervous, restless
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
changes in taste
confusion
constipation or diarrhea
dry mouth
headache
muscle weakness
nausea, vomiting
trouble sleeping
This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Where should I keep my medicine?
This drug is given in a hospital or clinic and will not be stored at home.
Updated:  
March 21, 2017
Sources:  
U.S. FDA-approved Package Insert