Homatropine is an anticholinergic agent used to dilate the pupil, treat inflammation of the uveal tract, and suppress a cough. Homatropine is an anticholinergic drug that acts as an antagonist at muscarinic acetylcholine receptors.
- Mechanism
- Curator reviewed · 1 reference
Homatropine is a competitive muscarinic receptor antagonist with a bulky aromatic group in place of the acetyl group of acetylcholine. It is expected to act in similar manner as atropine, producing similar parasympatholytic effects. By blocking muscarinic receptors and cholinergic signalling pathways, homatropine blocks the response of the iris sphincter muscle and cause the pupil to become unresponsive to light upon dilation or mydriasis. It also blocks the accommodative muscle of the ciliary body to cholinergic stimulation.
- Primary indication
- Indicated as an overdose-rescuing agent in combination with hydrocodone antitussive.Curator reviewed · 2 structured indications
- Formula / weight
- C16H21NO3 · 275.348 g/mol (avg)
- First approval
- Canada, 1951
Resolves to
ZTVIKZXZYLEVOL-MCOXGKPRSA-NSMILES[H][C@]12CC[C@]([H])(C[C@@H](C1)OC(=O)C(O)C1=CC=CC=C1)N2CWhat you can answer from here — as of August 30, 2026
Which drugs share a target with Homatropine, and which of those have an active Phase 3 trial?
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