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Tropicamide (U.S.N.L.M.)
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| Dosing | 1 or 2 drops 0.5% 15 or 20 minutes before exmination. | |
| Chem Specs | tropicamide 0.5%, 1% | |
| Quantities | 2, 3, 15ml | |
| Cost | 10.00/15ml | |
| Class | parasympatholytic, | |
| Action | Binds to and blocks the M4 muscarinic receptors in the iris sphincter and ciliary muscle. | |
| Usage | Mydriasis and (some) cycloplegia for diagnostic procedures. | |
| May produce a transient elevation of IOP. . | ||
| Contraindications | Primary glaucoma, narrow anterior chamber angle, hypersensitivity to any component of the product. |
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| Pediatric use | May rarely cause dangerous CNS disturbances. Psychotic reactions, behavioral disturbances, and vasomotor or cardiorespiratory collapse in children have been reported with the use of anticholinergic drugs. |
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| Pregnancy | Category C | |
| Peak mydriasis 20-40 min. Peak cycloplegia 20-35 min. Recovery 4-8 hrs. 0.5% concentration gives better comfort but with about equivalent mydriasis as 1%. |
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