Carbonic Anhydrase Inhibitor (Glaucoma Eye Drop)
Last reviewed July 2026
Who is this for?
Dorzolamide is an eye drop medicine that lowers pressure inside the eye by reducing the amount of fluid the eye produces. It belongs to a group of medicines called carbonic anhydrase inhibitors.
Inhibits carbonic anhydrase II enzyme in the ciliary body epithelium, reducing aqueous humour production and thereby decreasing intraocular pressure in glaucoma and ocular hypertension.
High eye pressure (ocular hypertension), glaucoma (a condition where high pressure in the eye can damage your sight over time)
Prescription Required
You need a doctor's prescription to buy this drug.
Explore this drug
If you forget a dose, put the drop in as soon as you remember. But if it is almost time for your next dose, skip the missed one and continue your normal schedule. Do not put in a double dose to make up for the one you missed.
Only buy from licensed pharmacies, as eye drops sold by roadside vendors may be contaminated or expired, which can damage your eyes. Do not share your eye drops with anyone else, even if they have similar symptoms. If you wear contact lenses, remove them before applying the drops and wait at least 15 minutes before putting them back in.
If you are taking acetazolamide (Diamox) tablets for any reason, tell your doctor because using both together can increase side effects. Dorzolamide may interact with high-dose aspirin, so let your doctor know if you take aspirin regularly. Always tell your eye doctor about all other medicines you are using, including herbal remedies.
Check your specific combination
Is it safe to take Dorzolamide with your other drugs?
Dorzolamide is not recommended during pregnancy or breastfeeding unless your doctor decides the benefit outweighs the risk, so always consult your doctor first.
Store at room temperature, away from direct sunlight and heat. In Nigeria's hot climate, keep it in a cool, dry place, not inside a hot car or near a window. Keep the bottle tightly closed when not in use and away from children. Once opened, use within 4 weeks and discard any remaining drops after that.
For information only: not medical advice. Always talk to a doctor or pharmacist before changing your medication.
Names this drug is sold under, especially in Nigerian and West African pharmacies
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Counterfeit Drug Warning
Fake drugs are a serious problem in Nigeria. Always buy from a registered pharmacy. If the packaging looks different from what is described above, do not use it.