A Guide to Atropine Sulfate, the Atroject Generic for Pets

Helping Keep Your Pet's Eyes Healthy

By Sam Bourne.

  • Eye Inflammation
  • Eye Infection
  • Eye Lid Problems

indications for Atropine Sulfate

Atropine Sulfate is an ophthalmic medication used to help stop spasms of the iris by temporarily paralyzing the muscles in charge of dilation. This can be useful when doing eye examinations, as well as for cats and dogs suffering from corneal ulcers, uveitis, and other eye conditions that might be causing discomfort.


Atropine Sulfate should not be taken by pets with, or predisposed to, glaucoma. Pets with a known sensitivity to drugs of this nature should not be given atropine sulphate. In cases where the ocular lens separates from its attachments within the eye, atropine sulfate should not be used. Atropine sulfate should not be taken with anticholinesterase, antihistamines, benzodiazepine, corticosteroids, phenothiazine, sympathomimetics, thiazide diuretic, amitraz, disopyramide phosphate, meperidine, metoclopramide, nitrofurantoin, primidone, procainamide, or quinidine.


Dog and cat-- 1-2 drops in the eye(s) three times a day (or as directed by veterinarian)

Brand/Generic equivalents

Atroject, Atropine LA

Side Effects

General side effects of atropine sulfate may include dry mouth, dysphagia, constipation, vomiting, difficulty urinating, and excessive thirst. Effects on the central nervous system include drowsiness, ataxia, seizures, respiratory depression, and photophobia. Effects on the heart include sinus tachycardia, bradycardia, hypertension, hypotension, arrhythmia, and difficulty circulating.

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Atropine Sulfate at a glance

  • 1For dogs and cats
  • 2An anticholinergic medication
  • 31-2 drops in the eye(s)
  • 4Treats abnormal eye dilation and loss of visual accommodation

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