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Dorzolamide (eye): uses, side effects & brands
Dorzolamide eye drops lower eye pressure, often combined with timolol. It belongs to the Eye (ophthalmic) medicine group. Eye drops and ointments treat glaucoma, infections, allergy, inflammation or dryness of the eyes.
Drug type — dosing is set by your doctor
| Measure | Range |
|---|---|
| Drug class | Eye (ophthalmic) medicine |
| Type | Prescription |
| Dose | Individual — ask your doctor or pharmacist |
What it is used for
- Open-angle glaucoma
- Raised eye pressure (ocular hypertension)
- Combined with timolol in one drop when extra lowering is needed
Common brand names
- India: Dorzox, Misopt
- Worldwide: Trusopt
Common side effects
- Stinging or burning
- Bitter taste in the mouth
- Blurred vision
- Eye redness or itching
Before taking it — precautions
- Tell your doctor about a sulfa (sulfonamide) allergy
- Severe kidney disease — usually avoided
- Tell your doctor about corneal problems or if you take acetazolamide-type tablets
When to see a doctor urgently
- Severe skin rash or allergic swelling (urgent)
- Eye pain, swelling or marked redness
- Sudden vision change (urgent)
Frequently asked questions
Why do I get a bitter taste?
The drop drains into the nose and throat. Pressing the inner corner of the eye after use helps.
Why is it combined with timolol?
They lower eye pressure in two different ways, so together they work better with fewer bottles.
I have a sulfa allergy — can I use it?
Tell your doctor first; dorzolamide is a sulfonamide and may not suit you.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.