Trusopt Ampules Preservative Free (Dorzolamide HCl)

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Trusopt Ampules Preservative Free Brand
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Dorzolamide HCl (Generic alternate to Trusopt Ampules Preservative Free) Generic

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Table of contents:

Trusopt is an eye medication used to treat high pressure to lower intraocular pressure (IOP) in the eyes in people with open-angle glaucoma or ocular hypertension.

Trusopt an eye drop that comes in single-dose ampoules and contains the active ingredient dorzolamide hydrochloride. The medication works by reducing the production of fluid (aqueous humor) in the eye, which helps to lower intraocular pressure. This is achieved by blocking the enzyme carbonic anhydrase, which is involved in producing aqueous humor.

Use and Dosage

Trusopt Ampules Preservative-Free is to be applied directly into the affected eye(s) as per the instructions provided by your doctor. A single drop of Trusopt Ampules Preservative-Free is recommended to be applied three times a day.

It can be found in some products that may be absorbed by contact lenses. If you wear contact lenses, remove them before using the eye drops with preservative. Wait at least 15 minutes after using it before putting in your contact lenses.

To use Trusopt Ampules Preservative Free (Dorzolamide Hcl) ampules, follow the instructions provided by your healthcare provider or pharmacist. In general, the steps for using eye drop ampules are as follows:

  1. Wash your hands thoroughly with soap and water.
  2. Gently twist off the top of the ampule to open it, taking care not to squeeze or crush the ampule.
  3. Squeeze the contents of the ampule into the affected eye(s) as instructed by your healthcare provider.
  4. After using the medication, dispose of the ampule and do not reuse it.
  5. If you need to use the medication in both eyes, use a separate ampule for each eye and repeat the steps above.

Use Trusopt Ampules Preservative Free properly. Do not exceed the recommended dosage unless otherwise directed by a healthcare professional.

Side Effects

Common Side Effects of Trusopt Ampules Preservative Free (Dorzolamide Hcl):

  • Changes in color vision
  • Difficulty seeing at night
  • Dryness of the eyes
  • Eyelid reactions
  • Headache
  • Increased sensitivity of the eyes to sunlight

Serious Side Effects of Trusopt Ampules Preservative Free (Dorzolamide Hcl):

  • Blistering, burning, crusting, dryness, or flaking of the skin
  • Change in vision
  • Chills
  • Cough
  • Diarrhea
  • Difficult or labored breathing
  • Flashes of light
  • Floaters in vision
  • Hives or welts
  • Itching skin
  • Joint or muscle pain
  • Large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
  • Noisy breathing
  • Redness of the skin
  • Sore throat
  • Sores, ulcers, or white spots in the mouth or on the lips
  • Tightness in the chest
  • Unusual tiredness or weakness

Forms and Strength

Trusopt Ampules Preservative Free (Dorzolamide Hcl) is available in the following forms and strength:

Trusopt Ampules Preservative Free: Ampule

  • 2%


  • Do not use the medication if you are allergic to dorzolamide hydrochloride or any other ingredient in the medication.
  • Inform your doctor if you have any health conditions such as liver or kidney disease, eye surgery or injury, or any other eye conditions.
  • Dorzolamide can interact with other medications, vitamins, and supplements that you are taking. Inform your doctor about all the medications you are taking.
  • Trusopt Ampules Preservative Free may cause temporary vision changes, dizziness, or drowsiness. Avoid driving or operating machinery until you know how the medication affects you.
  • The medication may cause eye irritation, redness, and other side effects. Inform your doctor if these side effects persist.
  • Trusopt Ampules Preservative Free may not be suitable for use by pregnant women or individuals who are breastfeeding. Consult your doctor before using the medication.
  • Dorzolamide is not recommended for use in children under 2 years.
  • Trusopt Ampules Preservative Free may affect your blood sugar levels, therefore it should be used with caution if you have diabetes or are at risk of developing diabetes.
  • The medication may cause severe allergic reactions in some people. If you experience symptoms such as difficulty breathing, dizziness, or swelling of the face or throat, seek medical attention immediately.
  • Trusopt Ampules Preservative Free may interact with certain medications used to treat heart conditions, such as beta-blockers. Inform your doctor if you are currently taking any such medications.
  • The medication may cause blurred vision, which may affect your ability to perform certain tasks. Avoid operating heavy machinery or engaging in activities that require clear vision until you know how the medication affects you.
  • Trusopt Ampules Preservative Free may not be suitable for use in people with severe kidney or liver impairment. Inform your doctor if you have any such conditions.
  • Dorzolamide can cause a rare but serious side effect called metabolic acidosis, which can affect the body's pH balance. Inform your doctor if you experience unusual breathing, fatigue, or other symptoms of metabolic acidosis.

Frequently Asked Questions (FAQ)

How often should I use Trusopt Ampules Preservative Free?

Trusopt Ampules Preservative Free should be used as directed by your healthcare provider. Typically, one drop is placed in the affected eye(s) three times a day.

Can I use preservative-free eye drops every day?

Yes, it is safe to use preservative-free eye drops every day.

How long does it take dorzolamide (Trusopt) to work?

Dorzolamide (Trusopt) typically lowers eye pressure within 2 hours after each dose. It can take several weeks for the pressure to be consistently lower on the medication, so your provider will re-check your eye pressure after you have been using dorzolamide (Trusopt) for about 8 weeks.

Is there a preservative free dorzolamide?

Dorzolamide hydrochloride and timolol maleate ophthalmic solution preservative free is a sterile solution that does not contain a preservative. The solution from one individual unit is to be used immediately after opening for administration to one or both eyes.


It's important to purchase Trusopt Ampules Preservative Free from verified Canadian pharmacy.

Additional information

Generic name:

Dorzolamide HCl





Quantities Available:



Online Pharmacies Canada has provided information from third parties intended to increase awareness and does not contain all the information about Trusopt Ampules Preservative Free (Dorzolamide HCl). Talk to your doctor or other qualified medical practitioners for medical attention or advice, or if you have any concerns about Trusopt Ampules Preservative Free (Dorzolamide HCl).