NZ Formulary

Aciclovir (tablet)

ay-sye-kloe-veer

What does it do?

Aciclovir is used to treat and prevent viral infections such as herpes and shingles.

How should you take it?

Take aciclovir regularly as directed. Keep taking it until the course is finished, even if you start to feel better.
Take the tablets with a glass of water. You can also dissolve the tablets in a glass of water before taking.

What if you forget a dose?

Take the missed dose as soon as possible and continue as directed.

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

Easy/unusual bruising or bleeding

Tell your doctor immediately

Confusion

Tell your doctor

Headache, tiredness or weakness

More sensitive to sunlight (sunburn or rash)

Abdominal pain

Nausea, vomiting, diarrhoea

Tell your doctor if troublesome

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 have ever had a seizure.
  • Tell your doctor if you are pregnant, planning to become pregnant, or breastfeeding.
  • Drink plenty of fluids while taking aciclovir.
  • Protect yourself from too much sunlight while being treated with aciclovir. Always cover up and apply a thick layer of broad spectrum sunscreen (at least SPF 30) when outside. Do not use sunbeds.