← Medication Database
Other Specialties

Cosopt

Generic: dorzolamide timolol

Manufacturer: Merck  ·  Program: Merck Patient Assistance Program

Apply for Assistance

Eligibility Criteria

Insurance Requirement

Uninsured patients with no prescription drug coverage

Residency

US resident

Income Threshold

Up to 400% FPL

Household income below 400% of the Federal Poverty Level

Program Information

Processing Time

2–8 weeks

Delivery Method

shipped to patient

Application Method

Phone

Reauthorization

Required — annual

Typically Required Documents

ProvisionRX prepares and organizes all required documentation as part of your enrollment management. This list is provided for informational purposes.

  • proof of income
  • provider signature

Indicated For

Glaucoma, Eye Pressure

About This Medication

# Merck Patient Assistance Program Patient Guide: How to Get Cosopt (dorzolamide timolol) at Low or No Cost Cosopt (dorzolamide timolol) is a prescription eye drop medication used to treat high eye pressure in people with **open-angle glaucoma** or **ocular hypertension**. It combines two active ingredients—dorzolamide, a carbonic anhydrase inhibitor, and timolol, a beta-blocker—to reduce fluid production in the eye and lower intraocular pressure, helping prevent vision loss. This guide explains how the **Merck Patient Assistance Program (PAP)** can provide Cosopt **free of charge** to eligible uninsured patients struggling with costs. ## Who Qualifies for the Program? The Merck PAP is designed for **uninsured U.S. residents** (including territories; U.S. citizenship not required) who cannot afford their medications. Key requirements include: - A valid prescription for Cosopt from a U.S.-licensed healthcare provider. - **No prescription drug insurance** or employer-sponsored plans that require applying to PAP. - **Household income below 400% of the Federal Poverty Level (FPL)**. - Residency in the U.S. or U.S. territory. **Important**: Both you (the patient) and your prescribing healthcare professional (HCP) must complete, sign, and date the enrollment form. The program covers Cosopt and many other Merck medicines for up to **12 months**, with possible reauthorization needed.[1][3] ## About Cosopt **Cosopt** is typically prescribed when a single eye drop isn't enough to control eye pressure. Use it **twice daily** (one drop in each affected eye), as directed by your doctor. Common side effects include burning/stinging, bitter taste, or blurred vision; contact your doctor for serious issues like eye pain or infection signs. Always follow storage instructions (room temperature, away from light). This program helps ensure you don't skip doses due to cost—sticking to treatment is crucial for eye health.[1] ## Income Eligibility Breakdown Eligibility hinges on **household income** (total before taxes for you and dependents living with you). The threshold is **400% of the FPL**, which adjusts yearly. For 2026 guidelines (check MerckHelps.com for updates), here's a breakdown: | Household Size | Max Annual Income (400% FPL) | |----------------|------------------------------| | 1 (Individual) | $60,320 | | 2 (Couple) | $81,760 | | 3 | $103,200 | | 4 | $124,640 | *Add ~$21,440 per additional person.* These are estimates; verify exact FPL via HHS.gov or call (800) 727-5400. Provide **proof of income** (e.g., tax return, pay stubs, or program verification—no credit impact).[1][3] ## Insurance Requirements You must be **uninsured** with **no prescription drug coverage**. Medicare Part D, Medicaid, VA benefits, or employer plans disqualify you. If your plan requires PAP application, you may still qualify—confirm by phone. The program ships directly to **you**, not your pharmacy.[1][4] ## Step-by-Step Application Process 1. **Check Eligibility**: Visit MerckHelps.com or call **(800) 727-5400**.[2] 2. **Download Form**: Get the enrollment form from MerckHelps.com.[3] 3. **Patient Section**: Fill Section 1 (personal info), sign/date Sections 2-3. Include **proof of income**.[1][3] 4. **HCP Section**: Take to your doctor for Sections 4-5 (diagnosis, NPI, signature). Prescriptions for controlled substances must be separate.[3] 5. **Submit**: Mail original to Merck Patient Assistance Program, PO Box 1206, Wilkes Barre, PA 18703-1206. (Fax options vary; call for details.)[1][10] **Tip**: Use black ink; copies not accepted. Program may audit.[3] ## Timeline and Delivery Processing takes **about 2 weeks** (or <7 business days if complete).[3][10] Urgent needs? Call (800) 727-5400.[3] If approved, **Cosopt ships free to your home** within weeks. Approval lasts up to **12 months**; **reauthorization required** annually or sooner.[6] ## Alternatives if Denied or Ineligible - **State programs**: Check Benefits.gov or RxAssist.org. - **Generic options**: Ask your doctor about affordable alternatives. - **Patient Access Network (PAN) Foundation** or **NeedyMeds** for glaucoma aid. - **Pharmacy discounts**: GoodRx coupons (not for insured). - **Other PAPs**: If income slightly over, explore manufacturer copay cards (Merck Access Program).[7] - Call (800) 727-5400 for guidance. ## Disclaimer This guide is for informational purposes only and based on publicly available data as of 2026. Eligibility, forms, and FPL change—**always verify with Merck at (800) 727-5400 or MerckHelps.com**. Not medical advice; consult your HCP. Merck reserves audit rights and may limit enrollment. Free medicine contingent on approval; no guarantees.

Program information last verified: March 29, 2026

Ready to apply for Cosopt assistance?

ProvisionRX manages the complete application process. Start your application in about 15 minutes.

Start My ApplicationBrowse All Medications