NZ Formulary

Baclofen

bak-low-fen

What does it do?

Baclofen is used to prevent and relieve muscle spasm.

How should you take it?

Take baclofen regularly as directed. Take with food and a glass of water.

What if you forget a dose?

Take the missed dose as soon as possible. If it is close to the time for your next dose, skip the missed dose and carry on as normal. Do not take two doses at the same time.

Can you take other medicines?

Tell your pharmacist or doctor about all medicines or treatments that you may be taking, including vitamins, herbal products (e.g. kava, St John's wort) or recreational drugs.

What side effects might you notice?

Side EffectsRecommended action

Tiredness or weakness, dizziness, changes in speech

Confusion, hallucinations, low mood

Skin rash

Tell your doctor

Headache, drowsiness, trouble sleeping

Nausea, constipation, dry mouth

Tell your doctor if troublesome

Stomach upset

Take with food

If you notice any other effects, discuss them with your doctor or pharmacist.

Important information continues on next page.

Other information:

  • Tell your doctor if you have kidney problems, or if you have ever had a seizure.
  • Tell your doctor if you are pregnant, planning to become pregnant, or breastfeeding.
  • Baclofen can impair your ability to do tasks such as driving or using machines. Alcohol makes this worse. Discuss your risk with your health professional. (search NZTA - Are you safe to drive?)
  • Do not stop taking baclofen without talking to your doctor first.