bimatoprost vs latanoprost
Side-by-side comparison of bimatoprost and latanoprost Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Lumigan
Xalatan
Bimatoprost eye drops help lower pressure in the eye. It is used for people with open-angle glaucoma or ocular hypertension.
Latanoprost eye drops help lower pressure inside your eye. It is used if you have open-angle glaucoma or ocular hypertension.
This medicine treats high pressure inside your eye. It is for people who have open-angle glaucoma or ocular hypertension. These conditions can damage the optic nerve and cause vision loss. Bimatoprost helps to lower the pressure and protect your vision.
Latanoprost eye drops are used to lower high pressure in your eyes. This medicine is for people who have open-angle glaucoma or ocular hypertension. These conditions can damage your optic nerve and cause vision loss.
Bimatoprost is like a natural substance in your body. It works by helping fluid drain better from inside your eye. This lowers the pressure in your eye.
Latanoprost is like a natural substance in your body. It works by helping fluid drain better from inside your eye. This lowers the pressure in your eye.
- • Redness of the eye (conjunctival hyperemia)
- • Increased eyelash growth
- • Eye itching (ocular pruritus)
- • Blurred vision
- • Burning or stinging
- • Redness of the eye
- • Feeling like something is in your eye
- • Itching
- The medicine is not working 4,071
- The treatment is not working 3,077
- Eye redness 2,333
- Eye feels irritated 1,841
- Loss of eyelashes 1,386
- The medicine is not working 5,915
- The medicine is not effective 3,134
- Tiredness 2,228
- Eye feels sore or scratchy 2,190
- Pressure inside the eye increased 1,769
Bimatoprost can cause increased brown pigmentation of the iris, which is likely to be permanent. It can also cause your eyelashes to get longer, thicker, and more numerous. These eyelash changes are usually reversible when you stop using the medicine. This medicine may also cause inflammation inside the eye. Use caution if you have active inflammation in the eye. Macular edema has been reported with bimatoprost. Use with caution if you have risk factors for macular edema.
Latanoprost can cause your iris (the colored part of your eye), eyelid, and eyelashes to get darker. The iris color change may be permanent. Eyelash changes, like increased length and thickness, are usually reversible when you stop using the medicine. Use with caution if you have a history of eye inflammation or herpes keratitis.
It is not known if bimatoprost is safe to use during pregnancy. Talk to your doctor if you are pregnant or plan to become pregnant. It is also not known if bimatoprost passes into breast milk. Talk to your doctor if you are breastfeeding.
It is not known if latanoprost is safe to use during pregnancy. Tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding.
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How to Read This bimatoprost vs latanoprost Comparison
bimatoprost is classified in the Prostaglandin Analog (Ophthalmic) drug class, while latanoprost sits within the Prostaglandin Analog (Ophthalmic) class. Because both drugs share the same classification, they are often considered interchangeable in theory — but clinical outcomes rarely track that cleanly. Both drugs are prescription-only, so a licensed provider must authorize use.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, bimatoprost has 12,708 submissions while latanoprost has 15,236. Those figures reflect cumulative reporting volume — not per-patient risk — so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between bimatoprost and latanoprost — always consult your physician or pharmacist first.
Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.