Allopurinol – A-Z Drugs


What’s the drug Allopurinol for?

Allopurinol is a drug for treating gout and sure forms of kidney stones. This drug can be used to forestall elevated uric acid ranges in sufferers receiving most cancers chemotherapy. Most cancers chemotherapy sufferers can expertise elevated ranges of uric acid because of the launch of uric acid from most cancers cells that die. Allopurinol works by decreasing the quantity of uric acid made by the physique. Elevated uric acid ranges may cause gout and kidney issues.

What are the principles for utilizing Allopurinol?

This medication is often taken as soon as a day or precisely as directed by your physician. Take this medication after meals to cut back abdomen ache. If the dose is greater than 300 milligrams per day, you might want to divide it into a number of small doses for use sooner or later to succeed in the beneficial quantity (ask your physician for directions).

This drug is finest taken with a glass of water (240 ml) for every dose, and a minimum of drink eight glasses extra fluids a day. In case your physician directs you to cut back ingesting fluids for different medical causes, seek the advice of your physician for additional directions. Your physician may instruct you about methods to cut back acid in your urine (for instance, avoiding massive quantities of ascorbic acid / vitamin C).

The dosage relies in your medical situation and response to remedy. Use this remedy recurrently to get its advantages. That will help you keep in mind, drink it on the identical time day-after-day.

For the remedy of joint ache as a result of gout (gout), it could take as much as a number of weeks to really feel the consequences of this drug. Chances are you’ll expertise gout extra typically for a number of months after beginning this remedy whereas the physique removes extra uric acid. Allopurinol is just not a ache reliever. To cut back the ache of gout, proceed taking drugs prescribed for gout (for instance, colchicine, ibuprofen, indomethacin) as directed by your physician.

Inform your physician in case your situation doesn’t enhance or will get worse. Comply with the principles given by your physician or pharmacist earlier than beginning remedy. When you’ve got questions, seek the advice of your physician or pharmacist.

The right way to retailer Allopurinol?

This drug is finest saved at room temperature, away from direct gentle and damp locations. Don’t retailer within the lavatory. Don't freeze it. Different manufacturers of this drug might have completely different storage guidelines. Observe the storage directions on the product packaging or ask your pharmacist. Hold all medicines out of the attain of youngsters and pets.

Don’t flush medication in the bathroom or within the sewer except instructed. Discard this product when it has expired or whether it is not wanted. Seek the advice of your pharmacist or native waste disposal firm about the best way to safely eliminate your product.


The data offered is just not an alternative to medical recommendation. ALWAYS seek the advice of a physician or pharmacist earlier than beginning remedy.

What’s the dose of Allopurinol for adults?

Traditional Grownup Dosage for Gout (Gout)

Preliminary: 100 mg orally as soon as a day.

Upkeep: 200-300 mg (gout gentle) orally as soon as a day, or 400-600 mg / day (gout moderate-severe) in divided doses.

Traditional Grownup Dose for Secondary Hyperuricemia for Chemotherapy


Parenteral: 200 to 400 mg / m² / day as much as a most dose of 600 mg / day

Oral: 600 to 800 mg / day for 1 to three days with a minimal consumption of two L of fluid / day.

Upkeep: 200 to 300 mg / day orally till the affected person is not at excessive danger of hyperuricemia.

The same old grownup dose for calcium oxalate stones with hyperuricosuria

Preliminary: 200 to 300 mg orally as soon as a day.

Upkeep: 300 mg / day or much less.

Traditional Grownup Dose for Congenital Coronary heart Failure

Examine (n = 11) to forestall the formation of superoxide free radicals and enhance endothelial perform (in school NYHA II to III power coronary heart failure): 300 mg orally day by day for 1 month

Traditional Grownup Dose for Coronary heart Surgical procedure

Examine: In Coronary Artery Bypass Graft Surgical procedure, administer 600 mg orally sooner or later earlier than surgical procedure and 600 mg orally on the day of surgical procedure.

Traditional Grownup Dose for Leishmaniasis

Examine (n = 31 – Cutaneous leishmaniasis: 20 mg / kg / day plus a low dose of meglumine antimoniate (30 mg / kg / day) for 20 days.

Traditional Grownup Dose for Mania

Case Report – Mania (bipolar I) related to hyperuricemia: 300 mg orally day-after-day.

Traditional Grownup Dose for Percutaneous Transluminal Angioplasty Excessive Threat

Examine (n = 38) – Major Percutaneous Transluminal Coronary Angioplasty (PTCA): 400 mg orally instantly after getting into the emergency division (about 60 minutes earlier than reperfusion) and after main PTCA is full.

Traditional Grownup Dose for Reactive Perforating Collangenosis

Case Report: 100 mg orally day-after-day.

What’s the dose of Allopurinol for youngsters?

Traditional Kids Dosage for Secondary Hyperuricemia for Chemotherapy


Age ≤10 years: 200 mg / m2 / day in 1-Three divided doses, to not exceed 600 mg in 24 hours. Dosing doses better than 300 mg ought to be given in divided doses.

Age ≻10 years: 200 to 400 mg / m2 / day given in 1 to three divided doses, to not exceed 600 mg / 24 hours.


Age ﹤ 6 years: 150 mg / day in Three divided doses.

Ages 6-10 years: 300 mg / day in 2-Three divided doses.

Age> 10 years: 600-800 mg / day in 2 to three divided doses

Dosage of Extraordinary Kids for Leishmaniasis

Age> 5 years: Examine (n = 31) – Cutaneous leishmaniasis: 20 mg / kg / day, plus a low dose of meglumine antimoniate (30 mg / kg / day) for 20 days.

In what dosages and preparations is Allopurinol accessible?

Tablets, Oral: 100 mg, 300 mg.

Unintended effects

What unwanted side effects may happen as a result of Allopurinol?

Search rapid medical consideration if you happen to expertise any of the next indicators of an allergic response: hives, problem respiratory, swelling of the face, lips, tongue, or throat, or if you happen to really feel like fainting

Cease utilizing Allopurinol and call your physician you probably have any of the next severe unwanted side effects:

  • Fever, sore throat, and extreme headache, peeling pores and skin, and pink pores and skin rashes
  • The preliminary signs of any pores and skin rash, irrespective of how gentle
  • Ache or bleeding when urinating
  • Nausea, higher belly ache, itching, lack of urge for food, weight reduction, darkish urine, stool like clay, jaundice (yellowing of the pores and skin or eyes)
  • Urinate lower than typical or under no circumstances
  • Joint ache, flu signs
  • Tingling, numbness, ache, or extreme muscle weak point
  • Straightforward bruising, uncommon bleeding (nostril, mouth, vagina or rectum)
  • purple or pink spots below your pores and skin

Much less severe unwanted side effects might embody:

  • Vomiting, diarrhea
  • Drowsiness, headache
  • Adjustments in sense of style or
  • Muscle ache

Not everybody experiences unwanted side effects as talked about. There could also be some unwanted side effects not talked about above. When you’ve got issues about sure unwanted side effects, seek the advice of your physician or pharmacist.

Prevention & Warnings

What should be recognized earlier than utilizing Allopurinol?

Earlier than utilizing Allopurinol,

  • Inform your physician and pharmacist in case you are allergic to Allopurinol, or different medicines
  • Inform your physician and pharmacist about prescribed drugs and non-prescription medication, nutritional vitamins, dietary dietary supplements, and natural merchandise that you just use or will use. You’ll want to point out the next: Different anticoagulants comparable to amoxicillin (Amoxil, Trimox) ampicillin (Polycillin, Principen) anticoagulants ('blood thinners') comparable to warfarin (Coumadin) most cancers chemotherapy medication comparable to cyclophosphamide (Cytoxan) and mercaptopurin (Purinethol) chlorpropidide (Diocin) diuretics ('water capsules') medication that suppress the immune system comparable to azathioprine (Imuran) and cyclosporine (Neoral, Sandimmune) different medication for gout comparable to probenecid (Benemid) and sulfinpyrazone (Anturane) and tolbutamide (Orinase). Your physician may have to vary the dose of your medication or monitor you fastidiously for unwanted side effects
  • Inform your physician in case you are pregnant, planning to develop into pregnant, or breastfeeding. In the event you develop into pregnant whereas taking allopurinol, contact your physician
  • It is best to know that allopurinol could make you sleepy. Don’t drive a automobile or function an engine till you understand how this drug impacts you
  • Ask your physician about protected use of alcoholic drinks while you use allopurinol. Alcohol can cut back the effectiveness of allopurinol

Is Allopurinol protected for pregnant or breastfeeding ladies?

There isn’t any ample analysis on the dangers of utilizing this drug in pregnant or nursing ladies. All the time seek the advice of your physician to contemplate the potential advantages and dangers earlier than utilizing this medication. This drug is included within the class C being pregnant danger in keeping with the US Meals and Medication Administration (FDA)

The next are references to being pregnant danger classes in keeping with the FDA:

  • A = No danger
  • B = No danger in a number of research
  • C = Possibly dangerous
  • D = There’s constructive proof of danger
  • X = Contraindications
  • N = Unknown

Research in ladies present that this drug poses minimal danger to infants when used throughout breastfeeding.


What medicines may work together with Allopurinol?

Drug interactions can change the efficiency of your remedy or improve the chance of great unwanted side effects. Not all potential drug interactions are listed on this doc. Hold an inventory of all of the merchandise you utilize (together with prescription / nonprescription medicines and natural merchandise) and seek the advice of your physician or pharmacist. Don’t begin, cease or change the dose of any drug with out the physician's approval

Inform your physician about different medicines you utilize, particularly:

  • Azathioprine (Imuran)
  • Chlorpropamide (Diabinese)
  • Cyclosporine (Gengraf, Sandimmune, Neoral)
  • Merkaptopurin (Purinethol)
  • Antibiotics comparable to ampicillin (Principen, Omnipen, others) or amoxicillin (Amoxil, Augmentin, Trimox, Wymox)
  • Blood thinners comparable to dicoumarol or warfarin (Coumadin) or
  • Diuretic.

Can meals or alcohol work together with Allopurinol?

Sure medicines shouldn’t be used when consuming or when consuming sure meals as a result of drug interactions can happen. Consuming alcohol or tobacco with sure medication also can trigger interactions to happen. Focus on your use of medicine with meals, alcohol, or tobacco together with your well being care supplier

What well being situations can work together with Allopurinol?

Different well being issues in your physique can have an effect on the usage of this drug. Inform your physician you probably have different well being issues, comparable to:

  • Bone marrow downside
  • Liver illness – Use with warning. Would possibly make situations worse.
  • Kidney illness – Use with warning. Unintended effects can improve as a result of the cleaning of the drug is slower than from the physique.


What ought to I do in an emergency or overdose?

In case of emergency or overdose, contact your native emergency providers supplier (118/119) or instantly to the closest hospital emergency division.

What ought to I do if I miss a dose?

In the event you neglect one dose of this medication, use it as quickly as potential. However when it’s nearing the following dose, skip the missed dose and return to the standard dosage schedule. Don’t double the dose.

Hey Well being Group doesn’t present medical recommendation, analysis or remedy.

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