| Homatropine | ||||
|---|---|---|---|---|
| Dosing (uveitis/iritis) | 1 or 2 drops 5% up to q3hr or q4hr (bid to qid common practice) 1 drop 2% bid or tid for children |
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| Dosing (cycloplegia) | Instill 1 or 2 drops 2%, repeat in 5 to 10 min if nec. | |||
| Chem Specs | homatropine HBr 2%, 5% | |||
| Quantities | 2, 5, 15ml | |||
| Cost | 30.00/5ml | |||
| Class | anticholinergic | |||
| Action | Competitive antagonist for the muscarinic acetylcholine receptor. | |||
| Usage | Indicated for cycloplegic refraction or for pupil dilation in acute inflammatory conditions of the iris and uveal tract. |
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| Increased susceptibility in infants, young children, and in children with blond hair, blue eyes, Down's syndrome, spastic paralysis, or brain damage. |
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| Contraindications | Untreated narrow-angle glaucoma, or untreated anatomically narrow angles, or hypersensitivity to any component of the preparation. |
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| Pediatric use | Use with caution with infants and small children. | |||
| Pregnancy | Category C | |||
| Peak mydriasis 40-60 min. Peak cycloplegia 30-60 min. Recovery 1-3 days. Roughly 1/10 as potent as atropine. Nasolacrimal pressure recommended.
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