Allopurizol 100 Tablet belongs to a class of medication called 'enzyme inhibitor', primarily used to decrease blood uric acid levels in the body. It is used to treat Gout (increased uric acid leading to inflammation), kidney stones, bladder stones. Gout is a type of inflammatory reaction (allergic reaction) to uric acid crystals that form and accumulate inside joints, especially  big toe, due to high uric acid levels in the blood resulting in immense pain in joints. 

Allopurizol 100 Tablet contains allopurinol, which works by inhibiting the enzyme xanthine oxidase, the enzyme responsible for the formation of uric acid. It stops uric acid formation inside the body without affecting the essential mechanism of cells and the body. 

Take Allopurizol 100 Tablet as prescribed by your doctor. You are advised to take Allopurizol 100 Tablet for as long as your doctor has prescribed it for you, depending upon your medical condition. The most common side effects of Allopurizol 100 Tablet are upset stomach, diarrhoea, skin rash, drowsiness. Most of these side effects of Allopurizol 100 Tablet are temporary, do not require medical attention, and gradually resolve over time. However, if the side effects are persistent, reach out to your doctor. 

Do not take Allopurizol 100 Tablet if you are allergic to any of its ingredients. Allopurizol 100 Tablet contains monohydrated lactose, if you are intolerant to some sugars, call your doctor before taking this drug. If you are pregnant or planning to get pregnant, are breast-feeding ask your doctor for advice before taking this medicine. Drink at least 2-3 litres of water so that you stay hydrated. For people who have kidney disease or renal dysfunction, dose adjustment is required. If you lose unexplained weight, please visit your doctor immediately.

Allopurizol 100 Tablet contains an 'enzyme inhibitor', medication, primarily used to decrease blood uric acid levels in the body. In addition to this, it is sometimes also used to treat pain caused by pancreas disease, seizures, and improve survival after bypass surgery. It also prevents the rejection of a kidney transplant. Allopurizol 100 Tablet contains allopurinol, an enzyme inhibitor primarily used to decrease blood uric acid levels in the body. It works by inhibiting the enzyme xanthine oxidase, the enzyme responsible for the formation of uric acid. It stops uric acid formation inside the body without affecting the essential mechanism of cells and the body.

Do not take Allopurizol 100 Tablet if you are allergic to any of its ingredients. Allopurizol 100 Tablet contains monohydrated lactose; if your doctor mentioned that you are intolerant to some sugars, call your doctor before taking this drug. If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor for advice before taking this medicine, you have heart problems or high blood pressure and you take diuretics and/or a medicine called ACE-inhibitors, you have thyroid problems. In rare cases, Allopurizol 100 Tablet can cause bone marrow depression, especially in patients who are already taking that can cause bone marrow depression. For people who have kidney disease or renal dysfunction, dose adjustment is required. If you lose unexplained weight, please visit your doctor immediately. Allopurizol 100 Tablet can cause drowsiness so do not operate machinery or car as it can impair judgment.