Zyloprim

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Generic: Allopurinol

ID: 00591554405

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Tablet

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300 mg

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1 INDICATIONS AND USAGE 2 DOSAGE AND ADMINISTRATION 2.1 Recommended Testing Prior to Treatment Initiation 2.2 Recommended Prophylaxis for Gout Flares 2.3 Recommended Dosage for Gout

🩺What it's for

Allopurinol Tablets are indicated for: The management of adults with signs and symptoms of primary or secondary gout (acute attacks, tophi, joint destruction, uric acid lithiasis, and/or nephropathy) The management of adult and pediatric patients with leukemia, lymphoma and solid tumor malignancies who are receiving cancer therapy which causes elevations of serum and urinary uric acid levels The management of adult patients with recurrent calcium oxalate calculi whose daily uric acid excretion…

💊How to take it

Gout: Prior to initiating treatment assess serum uric acid level, complete blood count, chemistry panel, liver and kidney function tests. Prophylactic treatment for gout flares is recommended. (2.1, 2.2) - Patients with normal kidney function: Initial dosage is 100 mg orally daily. Increase by 100 mg weekly increments until serum uric acid of 6 mg/dl or less is reached (maximum 800 mg daily). (2.3) - Patients with impaired kidney function: The initial dosage is 50 mg orally daily.

ℹ️Common side effects

⚠️Serious risks

Skin Rash and Hypersensitivity: Allopurinol has been associated with serious and sometimes fatal dermatological reactions. Discontinue Allopurinol Tablets at the first appearance of skin rash or other signs of hypersensitivity reaction. (5.1) Gout Flares: May occur during initiation of treatment. Concurrent prophylactic treatment with colchicine or anti-inflammatory agents is recommended. (5.2) Nephrotoxicity: Allopurinol may affect kidney function.

📋Interactions & cautions

The following drugs may increase the risk of serious skin reactions: bendamustine, thiazide diuretics, ampicillin and amoxicillin. (7.1) Capecitabine: Avoid concomitant use. (7.2) Mercaptopurine or Azathioprine: Reduce mercaptopurine or azathioprine dose as recommended in the respective prescribing information. (7.2) Pegloticase: Discontinue and refrain from initiating treatment with allopurinol tablets. (7.2) See FPI for complete list of significant drug interactions.

📦Storage & missed dose

How Supplied Allopurinol Tablets is available in multiple tablet strengths and package sizes (bottles with child-resistant caps) as listed in Table 4.

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The initial recommended dosage for the management of gout is 100 mg orally daily, with weekly increments of 100 mg, until a serum uric acid level of 6 mg/dL or less is reached. Initiating treatment with lower dosages of Allopurinol Tablets and titrating slowly, decreases the risk of gout flares and drug induced serious adverse reactions. In patients with renal impairment the initial dosage is 50 mg orally daily with lower dose increases until serum uric acid level of 6 mg/dL or less is reached. For complete dosage recommendations for patients with renal impairment see Table 1 [see Dosage and Administration (2.6)]. The minimal effective dosage is 100 mg to 200 mg daily and the maximal recommended dosage is 800 mg daily. The appropriate dosage may be administered in divided doses or as a single equivalent dose with the 300 mg tablet. Doses in excess of 300 mg should be administered in divided doses. Monitor patients kidney function during the early stages of administration of Allopurinol Tablets and decrease the dosage or withdraw the drug if persistent abnormalities in kidney function occur [see Dosage and Administration (2.6), Warnings and Precautions (5.3), Use in Specific Populations (8.6)]. The dosage of Allopurinol Tablets to achieve control of gout varies with the severity of the disease. In general, gout control is achieved with 200 mg to 300 mg daily in patients with mild gout, and with 400 mg to 600 mg daily in patients with moderate to severe tophaceous gout. Gout attacks usually become shorter and less severe after several months of therapy. If a dose of Allopurinol Tablets is missed, there is no need to double the dose at the next scheduled time. Allopurinol Tablets is generally better tolerated if taken following meals. A fluid intake sufficient to yield a daily urinary output of at least 2 liters and the maintenance of a neutral or preferably, slightly alkaline urine are desirable. Inform patients of the possibility of gout flares [see Warnings and Precautions (5.2)]. Instruct them to remain on Allopurinol Tablets if this occurs and to increase fluid intake during therapy to prevent kidney stones. Concurrent Use of Uricosuric Agents Some patients, may benefit using uricosuric agents concurrently, to reduce serum uric acid to target levels. When transferring a patient from a uricosuric agent to Allopurinol Tablets, reduce the dose of the uricosuric agent over a period of several weeks and increase the dose of Allopurinol Tablets gradually to the required dose needed to maintain target serum uric acid level.

The recommended initial dosages of Allopurinol Tablets in adult patients with renal impairment are shown in Tables 1 and 2 [see Use in Specific Populations (8.6)]. Patients with Gout The recommended initial dosages in adult patients with gout with impaired kidney function are shown in Table 1 [see Use in Specific Populations (8.6)]. Initiate treatment with a lower dose of Allopurinol Tablets and increase the dose gradually in 50 mg/day increments every 2 weeks to 4 weeks in patients with renal impairment to decrease the risk of drug induced serious adverse reactions. Use the lowest dose possible to achieve the desired effect on serum and/or urine uric acid. Monitor kidney function in gout patients with chronic kidney disease closely when initiating treatment with Allopurinol Tablets and decrease or withdraw the drug if increased abnormalities in kidney function appear and persist. Table 1. Recommended Initial Dosage in Adult Patients with Gout eGFR Initial Dosage > 60 mL/minute No dosage modification > 30 to 60 mL/minute 50 mg daily > 15 to 30 mL/minute 50 mg every other day 5 to 15 mL/minute 50 mg twice weekly < 5 mL/minute 50 mg once weekly The maximum dosage that should be used in patients with various levels of renal impairment is not defined at different eGFR levels. Patients with Recurrent Calcium Oxalate Calculi Data are insufficient to provide dosage recommendations for the treatment of recurrent calcium oxalate calculi in patients with renal impairment. Allopurinol and its metabolites are excreted by the kidney, and accumulation of the drug can occur in renal failure [see Warnings and Precautions (5.3) and Use in Specific Populations (8.6)]. Hyperuricemia Associated with Cancer Therapy The recommended dosage of Allopurinol Tablets for the management of hyperuricemia associated with cancer therapy in adult patients with renal impairment is shown in Table 2 [see Use in Specific Populations (8.6)]. Table 2. Recommended Dosage of Allopurinol Tablets in Adult Patients for Management of Hyperuricemia Associated with Cancer Therapy with Renal Impairment eGFR Recommended Dosage > 20 mL/min to 60 mL/min No dosage modification 10 mL/min to 20 mL/min 200 mg/day < 10 mL/min 100 mg/day On dialysis 50 mg every 12 hours, or 100 mg every 24 hours Treatment with Allopurinol Tablets has not been studied in pediatric patients with severe renal impairment (eGFR < 20 mL/min) or on dialysis. There is insufficient information to establish dosing for Allopurinol Tablets in pediatric patients with renal impairment. In these patients, consider the risks and potential benefits before initiating treatment with Allopurinol Tablets [see Warnings and Precautions (5.3) and Use in Specific Populations (8.6)].

Serious and sometimes fatal dermatologic reactions, including toxic epidermal necrolysis (TEN), Stevens-Johnson syndrome (SJS), and drug reaction with eosinophilia and systemic symptoms (DRESS) have been reported in patients taking allopurinol [see Adverse Reactions (6)]. These reactions occur in approximately 5 in 10,000 (0.05%) patients taking allopurinol. Other serious hypersensitivity reactions that have been reported include exfoliative, urticarial and purpuric lesions, generalized vasculitis, and irreversible hepatotoxicity. Discontinue Allopurinol Tablets permanently at the first appearance of skin rash or other signs which may indicate a hypersensitivity reaction. The HLA-B*58:01 allele is a genetic marker for severe skin reactions indicative of hypersensitivity to allopurinol. Patients who carry the HLA-B*58:01 allele are at a higher risk of allopurinol hypersensitivity syndrome (AHS), but hypersensitivity reactions have been reported in patients who do not carry this allele. The frequency of this allele is higher in individuals of African, Asian (e.g., Han Chinese, Korean, Thai), and Native Hawaiian/Pacific Islander ancestry [see Clinical Pharmacology (12.5)]. The use of Allopurinol Tablets is not recommended in HLA- B*58:01 positive patients unless the benefits clearly outweigh the risks. Consider screening for HLA-B*5801 before starting treatment with Allopurinol Tablets in patients from populations in which the prevalence of this HLA-B*5801 allele is known to be high. Screening is generally not recommended in patients from populations in which the prevalence of HLA-B*58:01 is low, or in current allopurinol users, as the risk of SJS/TEN/DRESS is largely confined to the first few months of therapy, regardless of HLA- B*58:01 status. Hypersensitivity reactions to Allopurinol Tablets may be increased in patients with decreased kidney function receiving thiazide diuretics and Allopurinol Tablets concurrently. Concomitant use of the following drugs may also increase the risk of skin rash, which may be severe: bendamustine, ampicillin and amoxicillin [see Drug Interactions (7.1)]. Discontinue Allopurinol Tablets immediately if a skin rash develops. Instruct patients to stop taking Allopurinol Tablets immediately and seek medical attention promptly if they develop a rash.

The following clinically significant adverse reactions are described elsewhere in the labeling: Skin Rash and Hypersensitivity [see Warnings and Precautions (5.1)] Nephrotoxicity [see Warnings and Precautions (5.3)] Hepatoxicity [see Warnings and Precautions (5.4)] Myelosuppression [see Warnings and Precautions (5.5)] Potential Effect on Driving and Use of Machinery [see Warnings and Precautions (5.6)] The following adverse reactions associated with the use of Allopurinol Tablets were identified in literature, unpublished clinical trials or postmarketing reports. Because some of these reactions were reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. The most frequent adverse reaction to Allopurinol Tablets is skin rash. Most Common Adverse Reactions ( 1%) Gastrointestinal: Diarrhea, nausea, alkaline phosphatase increase, AST/ALT increase. Metabolic and Nutritional: Acute attacks of gout. Skin and Appendages: Rash, maculopapular rash. Less Common Adverse Reactions (< 1%) Body As a Whole: Ecchymosis, fever, headache, malaise. Cardiovascular: Necrotizing angiitis, vasculitis, pericarditis, peripheral vascular disease, thrombophlebitis, bradycardia, vasodilation. Gastrointestinal: Hepatic necrosis, granulomatous hepatitis, hepatomegaly, hyperbilirubinemia, cholestatic jaundice, vomiting, intermittent abdominal pain, gastritis, dyspepsia, hemorrhagic pancreatitis, gastrointestinal bleeding, stomatitis, salivary gland swelling, hyperlipidemia, tongue edema, anorexia. Hemic and Lymphatic: Thrombocytopenia, eosinophilia, leukocytosis, leukopenia, aplastic anemia, agranulocytosis, eosinophilic fibrohistiocytic lesion of bone marrow, pancytopenia, prothrombin decrease, anemia, hemolytic anemia, reticulocytosis, lymphadenopathy, lymphocytosis. Musculoskeletal: Myopathy, arthralgias, myalgia. Nervous: Peripheral neuropathy, neuritis, paresthesia, somnolence, optic neuritis, confusion, dizziness, vertigo, foot drop, decrease in libido, depression, amnesia, tinnitus, asthenia, insomnia. Respiratory: Epistaxis, bronchospasm, asthma, pharyngitis, rhinitis. Skin and Appendages: Erythema multiforme exudativum (Stevens-Johnson syndrome), toxic epidermal necrolysis (Lyell's syndrome), hypersensitivity vasculitis, purpura, vesicular bullous dermatitis, exfoliative dermatitis, eczematoid dermatitis, pruritus, urticaria, alopecia, onycholysis, lichen planus, furunculosis, facial edema, sweating, skin edema. Special Senses: Taste loss/perversion, cataracts, macular retinitis, iritis, conjunctivitis, amblyopia. Urogenital: Renal failure, uremia, nephritis, impotence, primary hematuria, albuminuria. Endocrine: Infertility (male), hypercalcemia, gynecomastia (male). Most common adverse reactions (incidence > 1%) are nausea, diarrhea, and increase in liver function tests. (6) To report SUSPECTED ADVERSE REACTIONS, contact Teva at 1-888-838-2872 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

Table 3: Interventions for Clinically Important Drug Interactions with Allopurinol Tablets Capecitabine Clinical Impact Concomitant use with allopurinol may decrease concentration of capecitabine s active metabolites, which may decrease capecitabine efficacy. Intervention Avoid the use of Allopurinol Tablets during treatment with capecitabine Chlorpropamide Clinical Impact Allopurinol prolongs the half-life of chlorpropamide as both compete for renal tubular excretion. In patients with renal insufficiency, the risk of hypoglycemia may be increased due to this mechanism. Intervention Monitor patients with renal insufficiency for hypoglycemia when administering chlorpropamide and Allopurinol Tablets concomitantly. Cyclosporine Clinical Impact Concomitant use of allopurinol increases cyclosporine concentrations, which may increase the risk of adverse reactions. Intervention Increase frequency of monitoring cyclosporine concentrations as reflected in its prescribing information and modify the dosage of cyclosporine as appropriate when used concomitantly with Allopurinol Tablets. Cyclophosphamide and Other Cytotoxic Agents Clinical Impact Concomitant use of allopurinol with cyclophosphamide and other cytotoxic agents (doxorubicin, bleomycin, procarbazine, mechloroethamine) increases bone marrow suppression among patients with neoplastic disease, except leukemia. Intervention Blood count monitoring and regular physician follow-up are recommended. Dicumarol Clinical Impact Allopurinol prolongs the half-life of the anticoagulant, dicumarol. The mechanism of this drug interaction has not been established but should be noted when Allopurinol Tablets is given to patients already on dicumarol therapy. Intervention Monitor prothrombin time. Adjust the dosage of dicumarol accordingly when Allopurinol Tablets is added to anticoagulant therapy. Fluorouracil Clinical Impact Based on non-clinical data, allopurinol may decrease anti-tumor activity due to suppression of phosphorylation of 5-fluorouracil. Intervention Concomitant administration with fluorouracil should be avoided. Mercaptopurine or Azathioprine Clinical Impact Allopurinol inhibits xanthine oxidase mediated metabolism of mercaptopurine and azathioprine. Concomitant use of allopurinol increases the exposure of either mercaptopurine or azathioprine which may increase the risk of their adverse reactions, including myelosuppression [see Warnings and Precautions 5.5]. Intervention In patients receiving mercaptopurine or azathioprine, the concomitant administration of 300 mg to 600 mg of Allopurinol Tablets per day will require a reduction in dose to approximately one third to one fourth of the usual dose of mercaptopurine or azathioprine. Subsequent adjustment of doses of mercaptopurine or azathioprine should be made on the basis of therapeutic response and the appearance of toxic effects. Pegloticase Clinical Impact Concomitant use of allopurinol and pegloticase may potentially blunt the rise of serum uric acid levels and increase the risk of pegloticase related anaphylaxis in patients whose uric acid level increase to above 6 mg/dL. Intervention Discontinue and do not institute therapy with Allopurinol Tablets during treatment with pegloticase. Theophylline Clinical Impact Concomitant use of allopurinol doses greater than or equal to 600 mg/day may decrease the clearance of theophylline Intervention Monitor and adjust theophylline doses as reflected in the prescribing information. Uricosuric Drugs Clinical Impact Uricosuric agents increase the excretion of the active allopurinol metabolite oxypurinol. Concomitant use with uricosuric agents decreases oxypurinol exposure which may reduce the inhibition of xanthine oxidase by oxypurinol and increases the urinary excretion of uric acid. The net effect of such combined therapy may be useful in some patients in achieving minimum serum uric acid levels provided the total urinary uric acid load does not exceed the competence of the patient's kidney function. Intervention Monitor uric acid levels due to the increased chance of hypouricemic effects. Warfarin Clinical Impact Allopurinol may inhibit the metabolism of warfarin, possibly enhancing its anticoagulant effect. Intervention Monitor patients on concomitant therapy for excessive anticoagulation. Assess INR frequently and adjust warfarin dosage accordingly when allopurinol is added to warfarin therapy.

Risk Summary Based on findings in animals, Allopurinol Tablets may cause fetal harm when administered to a pregnant woman. Adverse developmental outcomes have been described in exposed animals (see Data). Allopurinol and its metabolite oxypurinol have been shown to cross the placenta following administration of maternal allopurinol. Available limited published data on allopurinol use in pregnant women do not demonstrate a clear pattern or increase in frequency of adverse developmental outcomes. Among approximately 50 pregnancies described in published literature, 2 infants with major congenital malformations have been reported with following maternal allopurinol exposure. Advise pregnant women of the potential risk to a fetus. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. The background risk of major birth defects and miscarriage for the indicated population is unknown. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Data Human Data Experience with Allopurinol Tablets during human pregnancy has been limited partly because women of reproductive age rarely require treatment with Allopurinol Tablets. A case report published in 2011 described the outcome of a full-term pregnancy in a 35-year-old woman who had recurrent kidney stones since age 18 who took allopurinol throughout the pregnancy. The child had multiple complex birth defects and died at 8 days of life. A second report in 2013 provided data on 31 prospectively ascertained pregnancies involving mothers exposed to allopurinol for varying durations during the first trimester. The overall rate of major fetal malformations and spontaneous abortions was reported to be within the normal expected range; however, one child had severe malformations similar to those described in the cited earlier case report. Animal Data There was no evidence of fetotoxicity or teratogenicity in rats or rabbits treated during the period of organogenesis with oral allopurinol at doses up to 200 mg/kg/day and up to 100 mg/kg/day, respectively (about 2.4 times the human dose on a mg/m2 basis). However, there is a published report in pregnant mice that single intraperitoneal doses of 50 mg/kg or 100 mg/kg (about 0.3 or 0.6 times the human dose on a mg/m2 basis) of allopurinol on gestation days 10 or 13 produced significant increases in fetal deaths and teratogenic effects (cleft palate, harelip, and digital defects). It is uncertain whether these findings represented a fetal effect or an effect secondary to maternal toxicity.

Allopurinol reduces the production of uric acid by inhibiting the biochemical reactions immediately preceding its formation in a dose dependent manner. The pharmacological action of allopurinol is generally believed to be mediated by its oxypurinol metabolite. Effect on Hypoxanthine and Xanthine Reutilization of both hypoxanthine and xanthine for nucleotide and nucleic acid synthesis is markedly enhanced when their oxidations are inhibited by allopurinol and oxipurinol. This reutilization does not disrupt normal nucleic acid anabolism, however, because feedback inhibition is an integral part of purine biosynthesis. As a result of xanthine oxidase inhibition, the serum concentration of hypoxanthine plus xanthine in patients receiving allopurinol for treatment of hyperuricemia is usually in the range of 0.3 mg/dL to 0.4 mg/dL compared to a normal level of approximately 0.15 mg/dL. A maximum of 0.9 mg/dL of these oxypurines has been reported when the serum urate was lowered to less than 2 mg/dL by high doses of allopurinol. These values are far below the saturation levels at which point their precipitation would be expected to occur (above 7 mg/dL). The increased xanthine and hypoxanthine in the urine in patients who were treated with oral allopurinol have not been accompanied by problems of nephrolithiasis; however, there are isolated case reports of xanthine crystalluria. Drug Interaction Studies Fluorouracil: Based on non-clinical data, allopurinol may decrease anti-tumor activity due to suppression of phosphorylation of 5-fluorouracil. Pegloticase: Concomitant use of allopurinol and pegloticase may potentially blunt the rise of serum uric acid levels required for monitoring the safe use of pegloticase. Cytotoxic Agents: Enhanced bone marrow suppression by cyclophosphamide and other cytotoxic agents has been reported among patients with neoplastic disease, except leukemia, in the presence of allopurinol. Thiazide Diuretics: Reports that the concomitant administration of allopurinol and thiazide diuretics contributed to increased allopurinol toxicity were reviewed; however, a causal mechanism or cause-and-effect relationship was not found.

Absorption Allopurinol is approximately 90% absorbed from the gastrointestinal tract. Peak plasma levels generally occur at 1.5 hours and 4.5 hours for allopurinol and oxipurinol respectively. After a single oral dose of 300 mg allopurinol, maximum plasma levels of about 3 mcg/mL of allopurinol and 6.5 mcg/mL of oxipurinol are produced. Elimination The half-life of allopurinol and oxipurinol are approximately 1 hour to 2 hours and 15 hours following oral dose of allopurinol, respectively. Metabolism Allopurinol is metabolized to the corresponding xanthine analogue, oxypurinol (alloxanthine), which also is an inhibitor of xanthine oxidase. Excretion Allopurinol and its primary active metabolite, oxipurinol, are eliminated by the kidneys. Approximately 20% of the ingested allopurinol is excreted in the feces. Oxipurinol is primarily eliminated unchanged in urine by glomerular filtration and tubular reabsorption. Drug Interaction Studies Capecitabine: Concomitant use with allopurinol may decrease concentration of capecitabine s active metabolites, which may decrease capecitabine efficacy. Cyclosporine: Concomitant use of allopurinol increases cyclosporine concentrations which may increase the risk of adverse reactions. Mercaptopurine or Azathioprine: Allopurinol inhibits xanthine oxidase mediated metabolism of mercaptopurine and azathioprine. Concomitant use of allopurinol increases the exposure of either mercaptopurine or azathioprine which may increase the risk of their adverse reactions including myelosuppression. Theophylline: Concomitant use of allopurinol doses greater than or equal to 600 mg/day may decrease the clearance of theophylline. Uricosuric Agents: Uricosuric agents increase the excretion of the active allopurinol metabolite oxypurinol. Concomitant use with uricosuric agents decreases oxypurinol exposure which may reduce the inhibition of xanthine oxidase by oxypurinol and increases the urinary excretion of uric acid. Warfarin: Allopurinol may inhibit the metabolism of warfarin, possibly enhancing its anticoagulant effect.

Administration Advise patients to take Allopurinol Tablets after meals to minimize gastric irritation. If a single dose of allopurinol tablets is occasionally forgotten, there is no need to double the dose at the next scheduled time. Skin Rash and Hypersensitivity Inform patients that Allopurinol Tablets may increase the risk of serious and sometimes fatal dermatologic reactions. Instruct patients to discontinue Allopurinol Tablets and to seek medical attention immediately, at the first sign of a skin rash, blisters, fever, painful urination, blood in the urine, irritation of the eyes, swelling of the lips or mouth, or other signs and symptoms of hypersensitivity reactions [see Warnings and Precautions (5.1)]. Gout Flares During Treatment with Allopurinol Tablets Inform patients that gout flares may occur during initiation of treatment with Allopurinol Tablets, even when their serum uric acid is normal. Concurrent use of additional medications such as colchicine or other anti-inflammatory agents can prevent gout flares. Advise patients to continue treatment with both, Allopurinol Tablets and the prophylactic therapy as prescribed, even if gout flares occur. Reassure them that it may take months to achieve control of the flares but the flares typically become shorter and less severe after several months of therapy [see Warnings and Precautions (5.2)]. Nephrotoxicity Inform patients that Allopurinol Tablets may affect kidney function. Advise them to increase fluid intake during therapy (i.e., for adults, at least 2 liters of liquids per day) and to stay well hydrated to prevent kidney stones [see Warnings and Precautions (5.3)]. Hepatotoxicity Inform patients of the risk of hepatotoxicity and to report to their healthcare provider any signs and symptoms of liver failure, including jaundice, pruritus, bleeding, bruising, or anorexia [see Warnings and Precautions (5.4)]. Myelosuppression Advise patients of the risk of myelosuppression and to report any signs and symptoms of infection, fever, bleeding, shortness of breath, or significant fatigue to their healthcare provider [see Warnings and Precautions (5.5)]. Potential Effect on Driving and Use of Machinery Inform patients that drowsiness, somnolence and dizziness have been reported in patients taking Allopurinol Tablets. Inform also that the central nervous system depressant effects of Allopurinol Tablets may be additive to those of alcohol and other CNS depressants. Advise patients to avoid operation of automobiles or other dangerous machinery and activities made hazardous by decreased alertness when starting Allopurinol Tablets or increasing the dose, until they know how the drug affects them [see Warnings and Precautions (5.6)]. Risks Associated with Use of Concomitant Medications Inform patients that there are risks of adverse effects when Allopurinol Tablets are used with the following drugs: dicumarol, warfarin, sulfinpyrazone, mercaptopurine, azathioprine, ampicillin, amoxicillin, pegloticase, theophylline, and thiazide diuretics. Advise patients to disclose all medications in use and they should follow the instructions of their physician [see Drug Interactions (7.2)]. Pregnancy Advise pregnant women of the potential risk to a fetus. Advise women to notify their healthcare provider if they become pregnant or intend to become pregnant during treatment with Allopurinol Tablets [see Use in Specific Populations (8.1)]. Lactation Advise women not to breastfeed during treatment with Allopurinol Tablets and for one week after the last dose [see Use in Specific Populations (8.2)]. Manufactured In India By: Watson Pharma Private Limited Verna, Salcette Goa 403 722 INDIA Manufactured For: Teva Pharmaceuticals Parsippany, NJ 07054 Rev. C 4/2024

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Allopurinol

Zyloprim

100 mg

$5.04

Zyloprim

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