Allopurinol 100 mg Tablets — Generic For Zyloprim — Camber

Medication Summary

Medication Summary: This section summarizes DailyMed drug label information to make the label easier to understand. It is not a substitute for the official label, pharmacist counseling, prescriber instructions, or medical advice.

Overview

Allopurinol tablets are used to manage certain conditions linked to high uric acid. The label lists use for adults with signs and symptoms of gout, adults and pediatric patients receiving cancer therapy that raises uric acid, and adults with recurrent calcium oxalate stones linked to high uric acid excretion.

The label says allopurinol is not recommended for treating asymptomatic hyperuricemia. It is taken by mouth, and dosing depends on the condition being treated and kidney function.

The tablet strengths are 100 mg and 300 mg. The 100 mg tablet is white to off-white, round, debossed with “U” and “5” on one side and a functional score line with “H” on the other side.

Storage Information

STORAGE AND HANDLING How Supplied Allopurinol Tablets, USP 100 mg -White to off-white colored, round tablets debossed with “U” and “5” on one side and functional score line with “H” on the other side. Storage and Handling  Store at 20°C to 25°C (68°F to 77°F) [see USP Controlled Room Temperature], in a dry place. Dispense in a tight container as defined in the USP.

Key Counseling Points

• Take allopurinol by mouth exactly as directed on the prescription label.
• For gout, the label says treatment is often started at a low dose and increased gradually.
• A gout flare can happen when treatment starts; the label says allopurinol does not need to be stopped if a flare occurs.
• The label recommends taking allopurinol after meals for better tolerance.
• Drink enough fluids as directed in the label to help maintain urine output and reduce the risk of kidney stones.
• Tell your healthcare provider right away if you develop a skin rash or other signs of hypersensitivity.
• Allopurinol may affect kidney function; kidney tests may be monitored, especially early in treatment.
• The label notes drowsiness, dizziness, or somnolence can occur, so be careful with driving or hazardous activities until you know how it affects you.
• If a dose is missed, the label says not to double the next dose.
• Let your healthcare provider know about other medicines you take, because several drug interactions are listed in the label.

Helpful Patient Education

Allopurinol tablets are an oral prescription medicine used to manage conditions associated with high uric acid, including gout, cancer-therapy-related hyperuricemia, and recurrent calcium oxalate stones in hyperuricosuric patients. The DailyMed label also notes that allopurinol is not recommended for asymptomatic hyperuricemia.

This product page is based on the labeled tablet information for allopurinol 100 mg tablets, including dosing considerations, important warnings, and the tablet’s appearance. For complete use information, refer to the full prescribing information and package labeling.

Medication Summary last generated: 2026-07-17 02:40:11