Monopost (preservative-free latanoprost 50 micrograms/ml) eye drops are a prescription medicine: on the NHS you pay the standard prescription charge (nothing in Scotland, Wales and Northern Ireland), and on a private prescription the pharmacy’s price for a pack of 30 single-dose units. Because glaucoma drops must be monitored, the more meaningful cost is the consultant assessment: Sapphire Eye Care lists an initial consultation from £240, or from £340 with an OCT scan; visual field testing and follow-up reviews are priced by the clinic.
How much does Monopost (latanoprost) cost?
Latanoprost is a low-cost medication. What you pay depends on whether it is prescribed on the NHS or privately, and whether you choose a preservative-free single-dose brand such as Monopost or a preserved multi-dose bottle:
For the wider picture of private glaucoma pricing, see our glaucoma cost guide. If drops alone do not control your pressure, laser and surgical options have their own pricing — see SLT laser cost and glaucoma surgery cost.
What is Monopost and how does it work?
Monopost contains latanoprost, a prostaglandin analogue, in a preservative-free single-dose format. It lowers the pressure inside the eye by increasing the natural drainage of fluid through the uveoscleral pathway. Used as a single drop each evening, it typically reduces eye pressure by around 25–35%, making it one of the most effective single-agent glaucoma treatments and the reason latanoprost is recommended first-line by NICE for most patients with open-angle glaucoma or ocular hypertension.
Being preservative-free, Monopost is often better tolerated by people with sensitive eyes or coexisting dry eye, where the preservative in standard bottled drops can cause stinging or surface irritation over years of daily use. Common, usually mild effects of latanoprost include a gradual darkening and lengthening of the eyelashes, possible darkening of the iris over time, and some redness. Because glaucoma usually has no symptoms until late, drops must be taken every day and pressure checked regularly. Learn more about the condition on our glaucoma overview and the treatment pathway on the glaucoma treatment page.
Not sure your drops are controlling your pressure, or finding preserved drops irritating? A consultant assessment gives you a clear answer.
Book a glaucoma assessmentOther glaucoma drop options
If latanoprost is not tolerated or not enough on its own, your consultant may switch to or add another MHRA-licensed drop. Common UK options include Travatan (travoprost), Ganfort (bimatoprost/timolol) and Cosopt (dorzolamide/timolol). Preservative-free versions are available across most of these for sensitive eyes.