Once you turn 65, your prescription costs are partly covered by the Ontario Drug Benefit (ODB) program. There are two income categories for single seniors, and two for senior couples. If you are in the lower category, you may pay up to $2 for each prescription filled. If you are in the higher category, you pay the first $100 of your prescription drug costs per year. After that, you may pay up to $6.11 in dispensing fees per prescription. These fees are called copayments. Most pharmacies do not charge the $2 copayment for people in the lower income category, and charge just $4.11 for people in the higher income category. In addition, many pharmacies also offer senior discounts of at least 10% on non-prescription merchandise. This section lists only pharmacies belonging to chains, but there are many independent pharmacies that also offer senior discounts. Pharmacies in grocery stores do not offer senior discounts for over-the-counter products.