What does it do?

Cycloserine is used to treat tuberculosis.

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 cycloserine regularly as directed with a glass of water.
Keep taking cycloserine until the course is finished, even when you start to feel better.

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. If you often forget to take cycloserine, your tuberculosis may not be fully treated.

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 Effects	Recommended action
Seizures	Tell your doctor immediately
Unusual behaviour or thinking, confusion Tremor Headache, dizziness, drowsiness	Tell your doctor

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

Other information:

• Limit alcohol intake while you are taking cycloserine. Alcohol can increase the chances of side effects like seizures, drowsiness and dizziness.
• Your doctor may prescribe pyridoxine (vitamin B6) to help prevent side effects of cycloserine.
• You will need regular blood tests while taking cycloserine to check how well your kidneys are working.
• Do not stop taking cycloserine without talking to your doctor first.
• Cycloserine is not registered for use in New Zealand. Discuss with your doctor.