What should patients do to ensure the efficacy of their nitroglycerin medication?

To ensure the efficacy of nitroglycerin medication, it is essential to store it away from heat in a tightly sealed glass container. This is important because nitroglycerin can degrade when exposed to heat, moisture, and light. Glass containers are preferred as they provide a better barrier against these elements compared to plastic, which can allow for chemical interactions or substance leaching over time.

Additionally, tightly sealing the container helps prevent exposure to air, which can also affect the stability of the medication. Proper storage conditions extend the shelf life and maintain the potency of nitroglycerin, ensuring that it can effectively relieve angina symptoms when required. It's crucial for patients to follow these guidelines to manage their condition safely and effectively.