To use GU Hydration Drink Tabs, simply drop one tab into a glass of water. Wait for it to dissolve completely, and then enjoy your electrolyte - enriched drink. It's great to have during or after a workout. As for storage, keep them in a cool, dry place away from direct sunlight. There aren't any major side - effects, but if you have specific health concerns like high blood pressure, it's a good idea to consult your doctor before using them because of the sodium content.
