Prescription drugs

Medications that legally need a prescription to be dispensed, unlike over-the-counter drugs; health insurance can help offset their cost.

Reviewed by Kyle Garrett, licensed insurance advisorLast reviewed October 2026. How we write

“Prescription drugs” refer to medications that legally require a medical prescription to be dispensed. These drugs are regulated and prescribed by healthcare professionals to treat, prevent, or manage various illnesses and medical conditions. Prescription medications are distinguished from over-the-counter (OTC) drugs, which can be purchased without a prescription. What a plan counts as a drug (a DIN, a prescription and a licensed dispenser) is under “drugs”.

In the context of health insurance, including extended health care plans, coverage for prescription drugs is a significant benefit. This coverage helps to offset the cost of medications that are essential for the treatment and management of chronic conditions, acute illnesses, and other health issues. In Quebec, prescription drug coverage is compulsory: if you are eligible for a private plan (for example, through your employer), you must join it and cover your spouse and children, and only people who aren’t eligible for one register with the public plan run by the Régie de l’assurance maladie du Québec (RAMQ). The federal Pharmacare Act (2024) supports coverage of contraception and diabetes medications through agreements with individual provinces and territories, so what’s covered depends on where you live. The specifics of prescription drug coverage can vary widely among insurance plans, including:

  • Formulary

    A list of prescription drugs covered by the insurance plan. Formularies are developed based on the efficacy, safety, and cost-effectiveness of medications.

  • Co-payments and deductibles

    Many plans require policyholders to pay a portion of the cost of prescription drugs out-of-pocket, either as a fixed co-payment or a deductible amount before coverage begins.

  • Prior authorization

    Certain medications may require prior authorization from the insurance company before coverage is approved, ensuring the drug’s use is medically necessary and in line with the plan’s guidelines.

  • Limits and exclusions

    Insurance plans may have limits on the amount of coverage provided for prescription drugs or exclude certain medications from coverage altogether.

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