Cat & Dog - Allopurinol

Why has my veterinary surgeon prescribed this medicine?

Allopurinol is used in the treatment of urate stones (calculi, uroliths) affecting the urinary system. Your veterinary surgeon may also prescribe a special diet and medication to change the pH of the urine.

This medicine can also be given as a permanent treatment to dogs with the exotic disease leishmaniosis.

Allopurinol is not available as a veterinary preparation. Your veterinary surgeon may ask you to sign a consent form so a preparation licensed for humans can be used to treat your pet.

How does this medicine work?

Allopurinol inhibits the enzyme xanthine oxidase and therefore the formation of uric acid from purines.

How do I give this medication?

• Give this medication to your pet as directed by your veterinary surgeon. Give the medication after meals.
• READ THE LABEL CAREFULLY.
• Try to give this medication at about the same time(s) each day.
• Wash your hands after handling the medication.
• In case of accidental ingestion, seek medical advice immediately and show the package, leaflet or label to the physician.
• DO NOT give the pet more medicine than directed and DO NOT give the medicine more often than directed.
• Try not to miss giving any doses.
• DO NOT discontinue the medication without first checking with your veterinary surgeon. Contact your veterinary surgeon in advance if your pet needs a repeat prescription.

What if I miss giving a dose?

Give the dose as soon as possible. If it is almost time for the next dose, skip the missed dose, and continue with the regular schedule. Do not give your pet two doses at once.

How do I store this medicine?

• Keep this medicine out of reach of children.
• Store this medicine in a cool, dry place below 25°C. Store away from heat and direct sunlight.

Potential side effects

• Side effects have been reported including skin rash and lethargy. Notify your veterinary surgeon if these side effects occur.
• Your veterinary surgeon may need to monitor your pet's blood to check kidney function.
• Other side effects may occur. If you notice anything unusual, contact your veterinary surgeon.

Possible drug interactions

• Tell your veterinary surgeon what other medication you are giving to your pet.
• Contact your veterinary surgeon if your pet experiences any unusual reactions when different medications are given together.