NZ Formulary

Baclofen

bak-low-fen

What does it do?

Baclofen is used to prevent and treat muscle spasm, and sometimes other conditions.

Before you start

  • Tell your doctor if you have kidney or mental health problems, or if you have ever had a seizure.
  • Tell your doctor if you are pregnant, planning to become pregnant, or breastfeeding.

How should you take it?

Take baclofen regularly as directed with a glass of water.

What if you forget a dose?

If it is nearly time for your next dose, skip the missed dose and take your next dose at the usual time. Otherwise, take the missed dose as soon as you remember. 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 or recreational drugs.

What side effects might you notice?

Side EffectsRecommended action

Seizures

Tell your doctor immediately

Confusion, drowsiness or weakness

Dizziness

Tell your doctor

Headache

Peeing more often

Nausea, constipation

Tell your doctor if troublesome

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

Other information:

  • 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.