Zyloric

Zyloric

allopurinol

Manufacturer:

GlaxoSmithKline Indonesia
Concise Prescribing Info
Contents
Allopurinol
Indications/Uses
Idiopathic gout, uric acid lithiasis, acute uric acid nephropathy; neoplastic & myeloproliferative disease w/ high cell turnover rates in which high urate levels occur either spontaneously or after cytotoxic therapy; certain enzyme disorders ie, hypoxanthine guanine phosphoribosyltransferase eg, Lesch-Nyhan syndrome; glucose-6-phosphatase eg, glycogen storage disease; phosphoribosylpyrophosphate synthetase & amidotransferase; adenine phosphoribosyltransferase. Management of 2, 8-dihydroxyadenine (2,8-DHA) renal stones related to deficient activity of adenine phosphoribosyltransferase; recurrent mixed Ca oxalate renal stones in the presence of hyperuricosuria, when fluid, dietary & similar measures have failed.
Dosage/Direction for Use
Adult 100-200 mg daily in mild conditions, 300-600 mg daily in moderately severe conditions, or 2-10 mg/kg/day. Childn <15 yr 100-300 mg daily.
Administration
Should be taken with food.
Contraindications
Special Precautions
W/draw treatment immediately if hypersensitivity reactions including maculopapular exanthema, hypersensitivity syndrome & SJS/TEN occur. HLA-B*5801 allele carrier. Patients under treatment for HTN or cardiac insufficiency (eg, diuretics or ACE inhibitors). Increased risk of allopurinol induced SJS/TEN, & other serious hypersensitivity reactions in patients w/ chronic renal insufficiency & concomitant diuretic use, particularly thiazides. Not indicated for asymptomatic hyperuricaemia. Not to be started until an acute gout attack has completely subsided. Conditions w/ increased urate formation eg, malignant disease, Lesch-Nyhan syndrome; ensure adequate hydration. Impaction of uric acid renal stones. Increased TSH values on long-term use. May affect ability to drive & use machines. Renal & hepatic impairment. Pregnancy & lactation.
Drug Interactions
Prolonged activity of 6-mercatopurine or azathioprine. Increases plasma t½ of vidarabine. Decreased effect by uricosurics eg, probenecid & large doses of salicylates. Increased risk of prolonged hypoglycaemic activity w/ chlorpropamide. Increased effects of warfarin & other coumarin anticoagulants. Inhibited hepatic oxidation of phenytoin. Inhibition of theophylline metabolism. Increased frequency of skin rash w/ ampicillin or amoxicillin. Enhanced bone marrow suppression by cyclophosphamide & other cytotoxic agents. Increased plasma conc of cyclosporin. Co-administration w/ didanosine is generally not recommended. Increased serum urate & oxipurinol plasma conc w/ furosemide. Increased risk of hypersensitivity w/ diuretics eg, thiazides & ACE inhibitors especially in renal impairment.
MIMS Class
Hyperuricemia & Gout Preparations
ATC Classification
M04AA01 - allopurinol ; Belongs to the class of preparations inhibiting uric acid production. Used in the treatment of gout.
Presentation/Packing
Form
Zyloric tab 100 mg
Packing/Price
200's;60's
Form
Zyloric tab 300 mg
Packing/Price
100's;30's
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