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Angle on Glaucoma: Medications
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Trusopt ®

Generic name: dorzolamide hydrochloride
Concentration: 2%
Mechanism of action: This carbonic anhydrase inhibitor reduces the aqueous humor production, thus lowering the pressure in the eye.
Indications: Treatment of open angle glaucoma or ocular hypertension.
Dosage: Instill one drop of dorzolamide ophthalmic solution into the affected eye(s) three times daily, 8 hours apart.
Use with caution in patients with/during:
  1. Renal impairment or severe renal disease (with a creatinine clearance less than 30 milliliters per minute).
  2. Hepatic disease.
  3. Sulfonamide hypersensitivity.
  4. Acute closed angle glaucoma.
  5. Pregnancy, breast feeding or in children.
Side effects:
Common
  • Allergic eye reaction (eye itchiness redness or swelling)
  • Bitter taste
  • Stinging or burning on application
  • Sensation of something in the eye
  • Light sensitivity

Life-Threatening Symptoms

  • Allergic reactions in patients who are also allergic to sulfonamides
Less Common to Rare
  • Unusual fatigue
  • Blurred vision
  • Dry eyes
  • Tearing
  • Nausea
  • Skin rash
  • Headache
  • Urolithiasis (blood in the urine), nausea, vomiting, back or side pain
Notes: Dorzolamide is a sulfonamide and has may cause a severe allergic reaction in patients with a sulfa drug allergy.

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URL: http://www.opt.indiana.edu/clinics/pteduc/glaucoma/meds/trusopt.htm
Revised: March 19, 2002
IU Optometry home page: http://www.opt.indiana.edu/
Comments: Web Administrator
Page design and coding: Terri Greene
Copyright © 2002, The Trustees of Indiana University