Zyric 300 Tablet is used to prevent and treat gout. Gout is caused by too much uric acid in your body. When the level becomes too high, crystals may form in and around certain joints and your kidneys. This can cause sudden and severe pain, redness, warmth, and swelling. This medicine works by preventing crystals from forming and reducing the levels of uric acid in your blood. This makes it less likely that you will suffer the symptoms and make them milder if you do have them. It is usually for long-term treatment and should be taken regularly until the dose is completed.