Ban the Medicine Cabinet
Diabetes medicine in tablet or capsule forms can deteriorate if stored improperly. Unfortunately, there are no obvious signs of a pill that has lost it potency, so your best bet is to read the label and follow the manufacturer's guidelines. Some tips:
Keep pills tightly closed in their original container. Most prescriptions come in childproof amber containers to protect against sunlight and moisture.
Avoid extreme temperature variations. Manufacturers' recommendations vary, but most suggest storing at room temperature, roughly 70 degrees.
Keep out of direct sunlight, even for brief periods.
Store in a dry place. "Your bathroom medicine cabinet is the worst place to store diabetes pills," Sulli says.