NZ Formulary

Flutamide

floo-tah-mide

What does it do?

Flutamide blocks the effects of testosterone (a male sex hormone) in the body. It is used to treat prostate cancer and sometimes other conditions.

Before you start

  • Tell your doctor if you have liver problems.
  • Tell your doctor if you are pregnant, planning to become pregnant, or breastfeeding.

How should you take it?

Take flutamide 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.

Important information continues on next page.

What side effects might you notice?

Side EffectsRecommended action

Symptoms of liver problems including: yellow skin or eyes, itching, dark urine, pale bowel motions, abdominal pain

Short of breath, persistent dry cough

Tell your doctor immediately

Sore or enlarged breasts

Hot flushing, sweating, more sensitive to sunlight (sunburn or rash)

Less interest in sex, trouble getting or keeping an erection

Less body and facial hair

Tiredness or weakness

Stomach upset

Tell your doctor if troublesome

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

Other information:

  • You will need regular blood tests while taking flutamide to check if it is causing problems with your liver.
  • Protect yourself from too much sunlight while being treated with flutamide. Always cover up and apply a thick layer of broad spectrum sunscreen (at least SPF 30) when outside. Do not use sunbeds.