DorzolamidePrices, Coupons & Savings

FDA badge
Looking for ways to save up to 90%* on your FDA-approved branded and generic medications?
You could enjoy savings using Now Patient’s mail-order online pharmacy or the Now Patient Rx Advantage Card at over 65,000 pharmacies.
US Flag
United States
*Based on the difference between the U&C price submitted and the price the patient paid, as of April 2023.

Mail Order Pharmacy

  1. Medication
    You save
    US Flag
  2. Dorzolamide HCl
    Generic for Trusopt
    10mL ophthalmic solutions $13.37 USD
    Save $42.20
  3. Dorzolamide HCl Timolol Maleate
    Generic for Cosopt
    22.3mg-6.8mg / mL
    10mL ophthalmic solutions $9.47 USD
    Save $83.76
Now Patient Parcel

Or join now to use our savings card

Savings Card

Save up to 90% of your branded or generic medications using the Now Patient Rx Advantage Card

Do you need a prescription for dorzolamide?

Yes, dorzolamide is only available with a valid physician Rx.

How much is dorzolamide without Insurance in the US?

Our website gives two competitive savings options to US customers who wish to purchase dorzolamide, as either a brand or generic, if available. The first is access to medications through our mail-order online pharmacy. The second is by using the Now Patient Rx Advantage Card, which can be used in over 65,000 pharmacies nationwide, across America. If you are insured, then in most cases, the cash price will be significantly cheaper than the copay.

What will my out-of-pocket cost be for dorzolamide in the US?

There are no out-of-pocket (OOP) costs because we are currently only offering a cash-based option to purchase medications.

Is Now Patient a dorzolamide savings card?

Yes. Save up to 90% on your dorzolamide with the FREE Now Patient Rx Advantage card*.
*Based on the difference between the U&C submitted by the pharmacy and the price the patients pay.

Can you handle Rx transfers for home delivery in the US?

Yes. If you use the mail-order online pharmacy option, then we can handle requests by you to have your prescription transferred to our pharmacy for home delivery. We can even help you manage your refills by giving you timely reminders, so you do not run out of your medication.

Is Now Patient a dorzolamide coupon provider in the US?

No. Now Patient does not provide dorzolamide coupons or FREE dorzolamide samples.

Do you accept commercial, Medicare or Medicaid coverage for dorzolamide in the US?

No. Currently, we only offer cash-based options for purchase, therefore we do not require your insurance benefit details. In the future, our plan is to be able to handle commercial insurance, Medicare and Medicaid including cases where you have multiple health plans that provide benefit coverage (e.g. Medicaid and Commercial). We also anticipate being able to handle more complex scenarios such as using primary insurance combined with a manufacturer copay assistance program.

Does Now Patient work with Medicare?

Our cash-based prices for medications are typically cheaper than Medicare copays. We do not bill Medicare Part D (standalone drug coverage) or Medicare Advantage (combined health and drug coverage). When you purchase your medication from Now Patient, you will be doing so out of your pocket. The spend will not count towards your plan deductibles or gaps.

Does Now Patient work with Commercial Insurance?

Our cash-based prices for medications are typically cheaper than commercial plan copays. We do not bill your commercial plan. When you purchase your medication from Now Patient, you will be doing so out of your pocket. The spend will not count towards your plan deductibles or gaps.

What should you do if you use too much dorzolamide?


Call your doctor right away or seek immediate medical attention if your symptoms do not improve or they become worse after using dorzolamide. You can also call 800-222-1222 to reach the American Association of Poison Control Centers or use its online resource if you think you’ve used too much dorzolamide. But if you have severe symptoms, call 911 (or your local emergency number) immediately or go to the nearest emergency room.


If you think it is an emergency, call 999 or find your nearest A&E
If you need help now, but it’s not an emergency go to 111.nhs.uk or call 111. Alternatively you can speak to one of our pharmacists or use the Now Patient app to make an appointment with your GP.

What should I do if I miss my dose?

There are occasions when people forget to take their medication at correct prescribed times. This may not only have an effect on potentially making the medication less effective but it may also inadvertently lead to taking doses too close together, thereby increasing the risks of side effects.

Click here to find out what to do if you forgot to take your medication

What is generic dorzolamide?

Generic dorzolamide refers to the non-brand-name version of the medication. It contains the same active ingredient as the brand-name drug but is typically less expensive.

FDA approval of dorzolamide

Dorzolamide is approved by the U.S. Food and Drug Administration (FDA) for the treatment of high eye pressure associated with open-angle glaucoma or ocular hypertension.

Active ingredient of dorzolamide

The active ingredient of dorzolamide is dorzolamide hydrochloride.

US brand name of dorzolamide and manufacturer

Dorzolamide is available in the US under various brand names, including Trusopt and Cosopt. The manufacturers may vary depending on the brand names.

UK brand name of dorzolamide and manufacturer

In the UK, dorzolamide is available under various brand names, including Trusopt. The manufacturer may vary depending on the brand name.

Prescription requirement for dorzolamide

A prescription (Rx) is required for dorzolamide in both the US and the UK.

Availability of dorzolamide in the UK with NHS prescription

Dorzolamide is available in the UK with an NHS prescription.

Conditions treated by dorzolamide

Dorzolamide is primarily used for the treatment of high eye pressure associated with open-angle glaucoma or ocular hypertension.

How does dorzolamide work?

Dorzolamide belongs to a class of medications called carbonic anhydrase inhibitors. It works by inhibiting the enzyme carbonic anhydrase, which plays a significant role in the production of fluid within the eye. By blocking this enzyme, dorzolamide reduces the amount of aqueous humor (fluid) produced and effectively lowers intraocular pressure (IOP).

Forms of dorzolamide available

Dorzolamide is available in the form of eye drops.

Dosage of dorzolamide

The dosage of dorzolamide may vary depending on the individual’s specific condition and response to the medication. It is essential to follow the recommended dosage instructions provided by the healthcare provider.

Directions for dorzolamide use

Dorzolamide eye drops should be used exactly as directed by the healthcare provider. The specific instructions may include the frequency of use and the number of drops to be applied to the affected eye.

If you wear soft contact lenses, they should be removed before using the eye drops and wait at least 15 minutes before reinserting. This is because bottles of eye drops contain preservatives which can affect soft contact lenses.

If more than one topical ophthalmic drug is being used, the drugs should be administered at least ten minutes apart.

If you miss a dose of dorzolamide, take it as soon as you remember unless it is close to the time for your next scheduled dose. In that case, skip the missed dose and continue with your regular dosing schedule. Do not double up on doses to make up for a missed one.

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

Warnings and precautions for dorzolamide

  • Dorzolamide may have certain risks and potential side effects. Discussing these with a healthcare provider before starting the medication is important
  • Dorzolamide contains a sulfonamide component, which can potentially cause an allergic reaction in individuals with a known sulfonamide allergy. If you have a history of sulfa allergy, it’s crucial to inform your healthcare provider before starting dorzolamide
  • Dorzolamide may interact with other medications, so it is important to inform the healthcare provider about all the medications being taken
  • It is important to inform a healthcare professional about all the medications you are taking, including prescription drugs, over-the-counter medications, and herbal supplements. They can evaluate the potential adverse effects and make necessary adjustments to your treatment plan to ensure the safety and effectiveness of the medications

Drug interactions for dorzolamide

  • If you are taking dorzolamide along with systemic beta-blockers, such as propranolol or metoprolol, you may experience a further reduction in heart rate and blood pressure. This can lead to symptoms like dizziness, lightheadedness, or fainting. Regular monitoring of your blood pressure and heart rate is essential in this case
  • Dorzolamide may interact with certain seizure medications, such as phenytoin or carbamazepine, and affect their effectiveness. It’s important to inform your healthcare provider if you are taking any seizure medications to ensure your treatment plan is optimized
  • Eye drops containing preservatives: If you are using other eye drops that contain preservatives (such as benzalkonium chloride) it’s important to space out the administration of dorzolamide and these eye drops to prevent any potential interactions. Your healthcare provider can provide you with specific instructions on how to properly use these medications

Use of dorzolamide if pregnant or planning pregnancy

The use of dorzolamide during pregnancy should be discussed with a healthcare provider. It may not be recommended unless the benefits outweigh the risks.

Possible side effects of dorzolamide

Common side effects of dorzolamide may include:

  • Mild eye discomfort, such as burning, stinging, or itching, after using dorzolamide eye drops. These sensations are usually temporary and tend to subside on their own. However, if the discomfort persists or worsens, it’s advisable to consult your ophthalmologist
  • Dorzolamide might cause temporary blurred or abnormal vision. This side effect usually lasts for a short duration, and vision returns to normal once the medication is discontinued. However, it’s important to report any significant changes in vision to your eye care professional promptly
  • Dorzolamide eye drops may occasionally cause dry eyes and redness in the eye. These symptoms are typically mild and transient but should be reported to your doctor if they persist or worsen. Your ophthalmologist may recommend using artificial tears to alleviate the dryness and redness
  • Dorzolamide eye drops may cause a bitter taste in the mouth. This side effect is usually mild and temporary, but if it becomes bothersome, consult your ophthalmologist for possible alternative treatments

In rare cases, some individuals may experience allergic reactions to dorzolamide. Symptoms of an allergic reaction may include severe eye itching or swelling, difficulty breathing, or rash. Serious side effects are rare but can occur. Promptly report any concerning symptoms to a healthcare provider.

Similar drugs to dorzolamide

Other carbonic anhydrase inhibitors, such as brinzolamide and acetazolamide, may be used as alternatives for the treatment of high eye pressure.



Now Patient has taken all reasonable steps to ensure that all material is factually accurate, complete, and current. However, the knowledge and experience of a qualified healthcare professional should always be sought after instead of using the information in this page. Before taking any drug, you should always speak to your doctor or another qualified healthcare provider.

The information provided here about medications is subject to change and is not meant to include all uses, precautions, warnings, directions, drug interactions, allergic reactions, or negative effects. The absence of warnings or other information for a particular medication does not imply that the medication or medication combination is appropriate for all patients or for all possible purposes.

Stefano Mirabello Medical Reviewer
Pharmacist / B.Pharm
To improve the lives of everyone by making high-quality care accessible and convenient

We are here to improve lives.  Our service gives you access to smart features & resources that can help empower you to take control of your health and improve your health outcomes.  All this, in one place, for FREE.  We strive to bring a fresh perspective to managing health. Not play by the rules. Now Patient can be accessed by downloading the App or using your web browser.

A mobile phone with a health app and a pollen meter.
Your Questions Answered
For your peace of mind, we can answer your health questions quickly
If you want to learn more about the range of services that we provide which can help manage and improve your health, then just click the button below.
Find your answers