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Carbachol ophthalmic Side Effects

Medically reviewed by Last updated on April 21, 2021.

For the Consumer

Applies to carbachol ophthalmic: ophthalmic intraocular injection, ophthalmic topical solution

Side effects include:

Topical solution: Ocular irritation (burning or discomfort), lacrimation, temporal or periorbital headache, painful ciliary or accommodative spasm, blurred vision or myopia, conjunctival vascular congestion, poor vision in dim light.

For Healthcare Professionals

Applies to carbachol ophthalmic: compounding powder, intraocular solution, ophthalmic solution


The most commonly reported side effects were headache and increased intraocular pressure.[Ref]


Uncommon (0.1% to 1%): Increased intraocular pressure

Frequency not reported: Corneal clouding, persistent bullous keratopathy, retinal detachment/postoperative iritis following cataract extraction, anterior chamber inflammation, corneal edema, eye inflammation, visual impairment, corneal degeneration, miosis, blurred vision, eye pain, ocular hyperemia[Ref]


Frequency not reported: Flushing[Ref]


Frequency not reported: Sweating[Ref]


Frequency not reported: Epigastric distress, abdominal cramps, vomiting[Ref]


Frequency not reported: Tightness in urinary bladder[Ref]

Nervous system

Uncommon (0.1% to 1%): Headache[Ref]


1. "Product Information. Isopto Carbachol (carbachol ophthalmic)." Alcon Laboratories Inc, Fort Worth, TX.

2. "Product Information. Miostat (carbachol ophthalmic)." Alcon Laboratories Inc, Fort Worth, TX.

3. Cerner Multum, Inc. "Australian Product Information." O 0

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.