ExoticRx · exoticrx.com/drugs/carbachol-ophthalmic
US brand names:Miostat, Isopto Carbachol
Direct-acting cholinergic agonist that stimulates muscarinic receptors of the sphincter pupillae and ciliary body, causing miosis and increased trabecular outflow.
Causes miosis, ciliary spasm, and brow ache. Use with caution in uveitis. Intraocular formulation (0.01%) used during ophthalmic surgery.
Species references:All Dog (Domestic) drugs
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A dog/cat sample is shown here. Cited dosing for all 1 species — reptiles, birds, pocket pets, livestock, and equine — is free on the per-species pages above. Pro adds the weight-based calculator for every species.
| Species | Route | Dose | Frequency | Evidence | Source |
|---|---|---|---|---|---|
| Dog (Domestic) | Ophthalmic | 0.01% concentration for intracameral use during cataract surgery | 0.5ml of 0.01% intracameral injection | Strong | Gelatt KN, Veterinary Ophthalmology, 6th Ed |
| Dog (Domestic) | Ophthalmic | More potent and longer-acting than pilocarpine | 1 drop affected eye q6h-q8h (1.5% or 3%) | Moderate | Gelatt, K.N. et al. (1984), as cited in Gelatt, Veterinary Ophthalmology 6th ed, Ch. 8.5, p.452 — Verified against Veterinary Ophthalmology (Gelatt), 6th Ed, p.475 (2026-08-01). |
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