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Author: Admin | 2025-04-28
A healthcare provider. The injection is usually only used if you are unable to take medicine by mouth.You may need frequent medical tests while using this medicine, even if you have no symptoms.Your kidney and liver function may also need to be tested. Your doctor may change your dose if your kidney function changes.You may have gout attacks when you first start taking allopurinol tablets. Your doctor may recommend another gout medication to take with allopurinol. Keep taking the medicine as directed.Your symptoms may not improve for up to 2 to 6 weeks. Call your doctor if your symptoms do not improve after 6 weeks.You may need to follow a special diet to help prevent kidney stones. Follow all instructions of your doctor or dietitian. Learn about the foods you should eat or avoid.Store at room temperature away from moisture and heat.What happens if I miss a dose?Take allopurinol as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.Call your doctor for instructions if you miss an appointment for your allopurinol injection.What happens if I overdose?Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.What should I avoid while using allopurinol?Avoid driving or hazardous activity until you know how allopurinol will affect you. Your reactions could be impaired.Avoid drinking alcohol.Allopurinol side effectsGet emergency medical help if you have signs of an allergic reaction to allopurinol (hives, difficult breathing, swelling in your face or throat) or a severe skin reaction (fever, sore throat, burning eyes, skin pain, red or purple skin rash with blistering and peeling).Seek medical treatment if you have a serious drug reaction that can affect many parts of your body. Symptoms may include skin rash, fever, swollen glands, muscle aches, severe weakness, unusual bruising, or yellowing of your skin or eyes.Allopurinol may cause serious side effects. Stop using this medicine and call your doctor at once if you have:any skin rash, no matter how mild;painful urination, blood in the urine;inflammation of your blood vessels - numbness or tingling, skin rash, fever, headache, body aches, night sweats, weight loss, feeling or weak or tired;signs of infection - fever, chills, sore throat, body aches, unusual tiredness, loss of appetite, bruising or bleeding; orliver problems - loss of appetite, weight loss, stomach pain (upper right side), itching, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes).Common allopurinol side effects may include:an increase in gout attacks when you first start taking this medicine;rash;drowsiness;abnormal liver function tests;nausea, vomiting, diarrhea; orkidney problems - swelling, urinating less, feeling tired or short of breath.This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.What other drugs will affect allopurinol?Tell your doctor about all your other medicines, especially:azathioprine or mercaptopurine;chlorpropamide;cyclosporine;cancer medicine;other gout medications;an antibiotic such as ampicillin or amoxicillin;a blood thinner such as warfarin, Coumadin, Jantoven;
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