What it is used for

Open-angle glaucoma
High pressure in the eye (ocular hypertension)

Read our guides:

Glaucoma

Off-label uses

Doctors sometimes prescribe a medicine for a condition it is not officially licensed for. This is called off-label use. It is legal and common when there is good evidence it helps, and your doctor should explain why they are suggesting it.

Latanoprost is not commonly used off-label.

How it works

Latanoprost is similar to natural prostaglandins. It increases the drainage of fluid from the eye, which lowers the pressure inside it.

Side effects

Like all medicines, Latanoprost can cause side effects, although not everyone gets them. Many are mild and ease after the first few weeks.

Common side effects

red or irritated eyes
longer and darker eyelashes
gradual darkening of the coloured part of the eye (iris)
darker skin around the eye

Tell your doctor or pharmacist if these bother you or do not go away.

Serious side effects

These are rare. Call 111 or contact your doctor straight away if you get:

eye pain, swelling or sudden changes in vision

Call 999 if you have signs of a serious allergic reaction, such as swelling of your lips, mouth, throat or tongue, or trouble breathing.

You can report any side effect to the Yellow Card scheme, run by the medicines regulator.

Stopping and withdrawal

Important safety information

Use it once a day in the evening.
Remove contact lenses before use.
Store unopened bottles in the fridge.

Questions about your medicine?

A pharmacist can answer questions about your medicines for free, without an appointment. You can also ask your GP for a medication review. Check if you can get free prescriptions.