Zyloric 300 mg Allopurinol is an ‘enzyme inhibitor’ type of medicine. It's generally used to lower blood uric acid levels. It’s also used to treat Gout, kidney stones, and bladder stones. Gout is an allergic reaction to uric acid crystals that develop and build inside joints, particularly the big toe, as a result of elevated uric acid levels in the blood, causing excruciating joint pain. Zyloric 300 mg Allopurinol works by blocking the enzyme xanthine oxidase, which causes uric acid production. It does this without interfering with the body’s and cells’ vital mechanisms. Take Zyloric 300 mg Allopurinol as directed by your doctor or GP. Depending on your condition, you should take this medication for as long as your doctor has told you to. Most common side effects include: • upset stomach, • diarrhoea, • skin rash, • and tiredness. The majority of these side effects are transient so they do not require medical treatment, and will fade away with time. However, if the negative effects do not go away, consult your doctor or GP. If you are allergic to any of the substances in Zyloric 300 mg, do not take it. Because Zyloric 300 mg includes monohydrated lactose, if you are lactose intolerant, consult your doctor before taking this medication. Before taking this prescription, see your doctor if you are pregnant or planning to become pregnant, or if you are breastfeeding. Stay hydrated by drinking at least 2-3 litres of water. Dose adjustments are indicated for persons with kidney disease or renal failure. Please see your doctor right away if you lose weight for no apparent reason. Gout (increased uric acid in joints), Kidney stones, and Bladder stones are all treated with Zyloric 300 mg.