The cost of prescription medications continues to rise across Canada, especially for people managing chronic conditions such as diabetes or obesity. For many patients in Ontario, the Trillium Drug Program (TDP) is one of the most powerful financial supports available. Yet most people do not know they qualify—and many don’t understand how the program actually works.
In this 2025 guide, we break down everything you need to know about the Trillium Drug Program, including eligibility, cost thresholds, how to apply, renewal requirements, and whether medications like Ozempic, Wegovy, Mounjaro, and insulin can be covered.
What Is the Trillium Drug Program?
The Trillium Drug Program is a provincial assistance program under the Ontario Drug Benefit (ODB). It is designed for individuals and families who spend a large portion of their household income on prescription medications.
Unlike regular ODB coverage—which often applies only to seniors, those on social assistance, or long‑term care residents—Trillium is income‑based. This means almost anyone can qualify regardless of age, as long as their drug costs are high relative to their income.
Who Is Eligible?
You may qualify for Trillium if:
- You live in Ontario.
- You have a valid OHIP card.
- Your household drug costs are high compared to your after‑tax income.
- You are not already fully covered by another program.
Even working families and individuals with private insurance may be eligible if their remaining out‑of‑pocket expenses exceed the deductible calculated for their household.
How the Deductible Works
Your annual TDP deductible is based on approximately 4% of your household’s after‑tax income. You pay this amount out‑of‑pocket before Trillium begins covering the remaining eligible medication costs.
Example
If your household net income is $50,000:
- Deductible ≈ $2,000 per year
- Once you spend this amount on prescriptions, TDP starts covering the rest (minus small co‑pays).
Does Trillium Cover Diabetes or Weight Loss Medications?
Yes—if the medication is listed in the Ontario Drug Benefit Formulary or eligible through a Limited Use (LU) code.
Covered or Partially Covered Medications May Include:
- Insulin (various brands)
- Metformin
- SGLT2 inhibitors (Farxiga, Jardiance)
- GLP‑1 medications for diabetes treatment:
- Ozempic (semaglutide) — covered for diabetes, not for weight loss alone
- Trulicity
- Rybelsus (coverage varies)
Weight‑Loss Specific Medications
Medications that are prescribed for weight loss alone (e.g., Wegovy) are not currently covered by TDP unless a future policy change occurs.
However, if a GLP‑1 medication is prescribed primarily to treat Type 2 diabetes, Trillium coverage may apply.
How to Apply for the Trillium Drug Program (Step‑by‑Step)
- Gather household income information (recent tax returns or Notice of Assessment).
- Complete the TDP Application found on the Ontario Ministry of Health website.
- Submit by mail or online upload.
- Applications are processed quarterly:
- April–June
- July–September
- October–December
- January–March
Coverage begins at the start of the next quarter.
What Happens After Approval?
Once approved:
- You pay your deductible incrementally throughout the year.
- After meeting the deductible, you pay small co‑payments (usually $2–$6 per prescription).
- Coverage is renewed annually.
Your pharmacy submits drug claims directly to Trillium once your deductible is met.
When to Consider Trillium
You should explore TDP if:
- You pay more than $150–$200 per month on medications.
- You use GLP‑1 medications regularly.
- You have variable income or no private insurance.
- You have dependents with high medication needs.
The Trillium Drug Program is often misunderstood, yet it provides valuable financial relief for many Ontario residents managing chronic conditions. If medication costs feel overwhelming, TDP may significantly reduce your out‑of‑pocket expenses.
For support with applications, prescription transfers, or medication questions, the team at Viva Health Pharmacy in Richmond Hill is here to help.
