NZ Formulary



What does it do?

Atomoxetine is used to treat ADHD (Attention Deficit Hyperactivity Disorder).

How should you take it?

Take atomoxetine regularly as directed with 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 or recreational drugs.

Important information continues on next page.

What side effects might you notice?

Side EffectsRecommended action

Suicidal thoughts

Prolonged erection (longer than four hours)

Symptoms of allergy including: skin rash, itching, swelling, trouble breathing


Fast or irregular heartbeat, chest pain

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

Tell your doctor immediately

Agitation, anxiety, mood changes

Changes in vision

Trouble peeing

Tell your doctor

Headache, trouble sleeping, drowsiness

Tremor, tingling or numbness, muscle weakness

Sweating, chills

Painful or irregular periods, hot flushing, changes in sexual function

Dry mouth, changes in taste, change of appetite or weight, constipation

Tell your doctor if troublesome

Stomach upset

Take with food

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

Other information:

  • Tell your doctor if you have liver, heart, or eye problems (e.g. glaucoma), a mood disorder, or if you have ever had a seizure.
  • Tell your doctor if you are pregnant, planning to become pregnant, or breastfeeding.
  • Atomoxetine 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?)
  • Atomoxetine does not work straight away. It should start to work in about a month.