General Drug Information and Indications

Short-acting anticholinergic mydriatic for ophthalmic examination, cycloplegia, and uveitis management. Short-acting antimuscarinic mydriatic (tropicamide 0.5–1% ophthalmic). Mechanism: competitive M3 muscarinic receptor antagonist in iris sphincter muscle → pupillary dilation (mydriasis); paralysis of ciliary muscle → cycloplegia. Onset 15–20 min; duration 4–6 hrs (shorter than atropine). For ophthalmic examination and diagnostic purposes. Key information Short-acting anticholinergic mydriatic/cycloplegic. For ophthalmic use only. Duration 4–6 hours. Causes temporary vision impairment. Store at room temperature.

How to Give this Medication

Ophthalmic solution: Instill into the conjunctival sac; avoid touching dropper tip to eye or periocular tissue. Instill 1 drop; repeat after 5 min for maximum dilation. Allow 15–20 min for full mydriasis before examination. Store at room temperature; protect from light. If a dose is missed This medication is administered by a veterinarian or veterinary staff in a clinical setting. Missed doses are managed by your veterinary team — contact your veterinarian to reschedule.

Side Effects

Ophthalmic: transient stinging upon instillation. Blurred vision (cycloplegia). Increased IOP (short-lived — use caution in glaucoma). Photophobia. Systemic absorption: tachycardia, dry mouth, urinary retention, flushing (rare with single ophthalmic dose).

Precautions

For animals Shortest-acting ophthalmic antimuscarinic — preferred for diagnostic mydriasis. Avoid in patients with narrow-angle glaucoma. Effect lasts 4–6 hrs — inform owners. Use with caution in pregnant animals. For people handling this medication Wash hands thoroughly with soap and water after handling. Ophthalmic antimuscarinic — avoid human eye contact (causes pupil dilation, blurred vision). Avoid contact with eyes; if contact occurs, flush with water for 15 minutes and seek medical attention. Keep out of reach of children.

Overdose

Contact your veterinarian. Tropicamide overdose causes anticholinergic signs: rapid heart rate, dry mouth, and dilated pupils.

Tropicamide Sol dosage forms

ProductStrengthFormSizeType
TROPICAMIDE SOL 1% OP———Commercial
TROPICAMIDE SOL 1% OP———Commercial

Sources

This information is provided for educational purposes and is not a substitute for advice from your veterinarian. Source: Merck Veterinary Manual (merckvetmanual.com); Plumb's Veterinary Drug Handbook (Plumb, D.C., app.plumbs.com)