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Allopurinol - 300 gm - 1 Tablet
$0.71 $0.71
Allopurinol - 300 gm - 100 Tablets
$70.99 $70.94

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What is Allopurinol
Allopurinol is used to prevent urate bladder stones.
Allopurinol requires a prescription from your veterinarian, and is sold per tablet.

how itworks:
Allopurinol belongs to a class of drugs called xanthine oxidase inhibitors which prevent the accumulation of uric acid. If uric acid accumulates in the body,
crystals form in the urine which may congregate to produce kidney or bladder stones.

Allopurinol should be given with meals. It should not be given to pregnant or nursing animals and should not be used in puppies.

Brand Name
Zyloprim (GlaxoSmithKline)

Generic Name

For: Cats and Dogs

what is the most important information I should know about Allopurinol
Allopurinol reduces the production of uric acid in the body. Allopurinol helps prevent the formation of bladder stones in dogs that are caused by high levels of uric acid. Allopurinol may also be used for purposes other than those listed in this guide.

What are the possible side effects allopurinol:
If any of the following serious side effects occur, stop giving allopurinol and seek emergency veterinary  medical attention; an allergic reaction (difficulty breathing; swelling of the lips; tongue or face; hives),
 blood in the urine or pain when urinating, a rash, eye irritation, fever, chills or joint aches or severe nausea or vomiting. Other less serious side effects may occur. Continue giving allopurinol and talk to your veterinarian if your pet experiences upset stomach or diarrhea, dizziness or drowsiness or an acute attack of  arthritis. Other side effects may also occur. Talk to your veterinarian about any side effect that seems unusual
or bothersome to the animal.

How it Works

Allopurinol is a xanthine oxidase inhibitor, meaning that it stops uric acid from accumulating in the body, thus lowering the risk of urate stones forming.  

Directions for use

Allopurinol can only be obtained with a prescription and should be administered as indicated by your vet. Give medication with a meal and provide your dog with plenty of water throughout treatment.

Dosage and administration: 

Allopurinol is recommended at a dose of 5mg/lb. once daily.


The product contains 100mg or 300mg of allopurinol depending on the strength.


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