Proper storage of Aspadol ER 150mg tablets ensures their effectiveness and safety. Keep them in a cool, dry place away from direct sunlight, moisture, and heat. Store at room temperature (between 20°C to 25°C) in their original packaging to protect them from humidity. Always keep the container tightly closed and out of reach of children and pets. Avoid storing in bathrooms or near kitchen sinks where humidity is high. Do not use damaged or expired tablets. Follow your pharmacist’s instructions for disposal if no longer needed.