Cosopt (Dorzolamide Hydrochloride, Timolol Maleate)
Cosopt is a prescription eye drop used to lower elevated pressure inside the eye (intraocular pressure). It is used for certain patients with open-angle glaucoma or ocular hypertension, and it should be used exactly as prescribed by an eye-care professional.
We only dispense medications with a valid prescription from a licensed prescriber.
All prescriptions are reviewed and verified before dispensing. Orders may be delayed or declined if prescription details are missing, do not match the patient information on file, appear altered, or are expired. We may also refuse service if we believe an order is intended for resale or redistribution.
What You Receive
- Cosopt (or approved generic) in sealed manufacturer packaging
- Personalized prescription instructions based on your prescriber’s directions
- Medication information leaflet provided by the manufacturer
- Itemized invoice detailing your order
- Rx Required
From $29.95 – $146.30
Shipping & Delivery
- Shipped from licensed pharmacy partners
- Tracking information is provided once your order ships
Delivery times may vary based on location and prescription verification.
This page is for general information only and is not medical advice. For medical questions, please speak with your prescriber. See Sources & Methodology for how this information is reviewed and referenced.
Cosopt Key Facts
What Cosopt is
Cosopt combines two glaucoma medicines in one eye drop: dorzolamide (a carbonic anhydrase inhibitor) and timolol (a beta-blocker). This combination helps reduce eye pressure, which can help lower the risk of vision damage from glaucoma or ocular hypertension.
What it’s used for
It is used to reduce elevated intraocular pressure in people with open-angle glaucoma or ocular hypertension who are not adequately controlled with beta-blocker eye drops alone.
How it works
Dorzolamide and timolol lower eye pressure in different ways, and using them together can improve pressure lowering compared with either medicine alone.
Cosopt Safety Overview
Cosopt is an eye drop, but part of the medication can still be absorbed into the body.
Cosopt Warnings & Precautions
Because Cosopt contains timolol (a beta-blocker) and dorzolamide (a sulfonamide-related medicine), serious whole-body side effects can happen in some people, especially those with breathing, heart, or sulfa allergy concerns.
Do not use Cosopt if:
- You have asthma, a history of asthma, or severe COPD
- You have certain serious heart rhythm or conduction problems
- You have overt heart failure or cardiogenic shock
- You are allergic to dorzolamide, timolol, or any ingredient in the product
Key warnings to know
- Cosopt can worsen breathing problems and certain heart conditions, especially in people with asthma, severe COPD, slow heart rate, heart block, or heart failure
- Serious allergic reactions can occur, including sulfonamide-related reactions
- Timolol may mask warning signs of low blood sugar and overactive thyroid
- Use caution in liver problems, and Cosopt is not recommended in severe kidney impairment unless your prescriber specifically advises otherwise
- Do not let the bottle tip touch the eye, eyelid, or other surfaces because contamination can cause serious eye infection
- Contact your eye-care provider if you have eye surgery, eye trauma, or an eye infection while using Cosopt
Side Effects and When to Get Help
Many side effects with Cosopt are mild and happen around the eye, especially shortly after using the drops. Because some of the medication can be absorbed into the body, serious breathing, heart, or allergic reactions can also happen in some people.
Possible side effects may include
- Eye irritation (burning, stinging, redness, tearing, itching)
- Temporary blurred vision after dosing
- Bitter or unusual taste after using the drops
- Eye surface discomfort
- Dry eye
- Headache
- Fatigue
Get urgent help right away for
- Trouble breathing, wheezing, or severe shortness of breath
- Very slow heartbeat, fainting, or severe dizziness
- New or worsening swelling in the legs, sudden weight gain, or worsening shortness of breath
- Severe allergic reaction symptoms such as swelling of the face, lips, tongue, or throat
- Severe rash or skin reaction
- Sudden major vision changes or severe eye pain
Interactions
Cosopt can interact with other medicines, especially medicines that affect heart rate, blood pressure, or acid-base balance. Review your full medication list with your prescriber.
Important interaction groups include
- Other beta-blockers (including oral beta-blockers)
- Certain heart and blood pressure medicines (including some calcium channel blockers, digoxin, clonidine, and catecholamine-depleting drugs)
- Oral carbonic anhydrase inhibitors (such as acetazolamide)
- High-dose salicylates
- CYP2D6 inhibitors
Cosopt Drug Facts
| Category | Details |
|---|---|
| Brand Name | Cosopt |
| Drug Class | Combination ophthalmic carbonic anhydrase inhibitor and beta-blocker |
| Indication | Reduction of elevated intraocular pressure in open-angle glaucoma or ocular hypertension in patients insufficiently responsive to beta-blockers |
| Dosage Forms | Ophthalmic solution (eye drops) |
| Strengths | Dorzolamide 2% and timolol 0.5% |
| Administration Timing | 1 drop in the affected eye(s) 2 times daily, as prescribed |
| Who should not use it | People with asthma/history of asthma, severe COPD, certain serious heart conduction/rhythm conditions, overt heart failure, cardiogenic shock, or hypersensitivity to ingredients |
| Contact lens guidance | Remove soft contact lenses before use and wait at least 15 minutes before reinserting |
| Storage | Store at 20° to 25°C (68° to 77°F), protect from light, and do not use after the expiration date on the bottle |
| Alternatives | Timolol (Timoptic), dorzolamide (Trusopt), latanoprost (Xalatan), bimatoprost (Lumigan), brimonidine (Alphagan P), Combigan, Simbrinza |
Helpful Information
How To Buy Cosopt Online
1
Select Your Prescribed Cosopt Dosage & Strength
Choose the strength and quantity that matches your prescription, then add it to your cart. Orders are limited to a 90-day supply per fill.
2
Complete Checkout
Ensure your shipping and contact information is correct so your order can be processed without delays.
3
Submit Your Cosopt Prescription
Upload your prescription at checkout. If you need a transfer, provide your prescriber or current pharmacy details and we will request it on your behalf.
Prescription & Dispensing Standards
- Prescription required for all orders and reviewed for pharmacy and regulatory compliance
- Dispensed by licensed pharmacy partners
- Orders are held if information is missing, unclear, or does not match.
- No substitutions without prescriber approval, and no controlled substances.
Our Guarantee
At MyRx Outlet, we are committed to delivering safe, high-quality medications that you can trust. We adhere to strict regulations in every country we operate in, ensuring that your order is handled by a licensed Canadian pharmacy or a trusted partner overseas. Each medication has been legally approved by Health Canada or other respected authorities. To purchase Cosopt at a discounted rate, call 1-888-551-2467.
FAQs
What is Cosopt used for?
Cosopt is used to lower high pressure in the eye in people with open-angle glaucoma or ocular hypertension, especially when a beta-blocker eye drop alone does not adequately control eye pressure.
How often is Cosopt usually used?
Cosopt is usually used as 1 drop in the affected eye(s) two times daily, but always follow your prescriber’s instructions.
Can I use Cosopt with other eye drops?
Yes, if your prescriber recommends it. Separate Cosopt and other eye drops by at least 5 minutes.
Can I wear contact lenses with Cosopt?
Yes, but remove soft contact lenses before using Cosopt and wait at least 15 minutes before putting them back in.
Is there a generic for Cosopt?
Generic dorzolamide-timolol ophthalmic solution may be available depending on the pharmacy and market, and packaging can vary.
Ordering & Prescription FAQs
Do I need a prescription?
Yes, a prescription is required. Refills depend on what your prescriber authorizes.
How do I submit my prescription?
You can upload it through our Upload Prescription page, email it to info@myrxoutlet.com, or fax it to 1-888-230-1245. If you need a prescription transfer, just let us know at checkout and include your pharmacy or prescriber contact details.
When is my payment processed?
Your payment is processed only after your prescription and order have been reviewed and approved by our licensed pharmacy team. Once everything is confirmed, we’ll process payment and prepare your order for shipping.
What happens if my prescription can’t be verified?
Your order may be placed on hold or declined if prescription details are missing, don’t match, are expired, or can’t be confirmed.
Sources
FDA Prescribing Information / Patient Information, COSOPT (dorzolamide hydrochloride and timolol maleate ophthalmic solution)
https://www.accessdata.fda.gov/drugsatfda_docs/label/2020/020869s042lbl.pdf
DailyMed Drug Label, COSOPT (dorzolamide hydrochloride and timolol maleate solution)
https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=44e3bbcd-01d4-4dba-be22-308dffecf236
DailyMed Search, dorzolamide hydrochloride and timolol maleate ophthalmic solution
https://dailymed.nlm.nih.gov/dailymed/search.cfm?adv=1&labeltype=all&query=dorzolamide+hydrochloride+and+timolol+maleate