| 0378-0137 | Allopurinol | allopurinol | Mylan Pharmaceuticals Inc. | ANDA | Current |
| 0378-0137 | Allopurinol | allopurinol | Mylan Pharmaceuticals Inc. | ANDA | Current |
| 0378-0137 | Allopurinol | allopurinol | Mylan Pharmaceuticals Inc. | ANDA | Current |
| 0378-0137 | Allopurinol | allopurinol | Mylan Pharmaceuticals Inc. | ANDA | Current |
| 0378-0181 | Allopurinol | allopurinol | Mylan Pharmaceuticals Inc. | ANDA | Current |
| 0378-0181 | Allopurinol | allopurinol | Mylan Pharmaceuticals Inc. | ANDA | Current |
| 0378-0181 | Allopurinol | allopurinol | Mylan Pharmaceuticals Inc. | ANDA | Current |
| 0378-0181 | Allopurinol | allopurinol | Mylan Pharmaceuticals Inc. | ANDA | Current |
| 0615-1592 | Allopurinol | Allopurinol | NCS HealthCare of KY, Inc dba Vangard Labs | ANDA | Current |
| 0615-1592 | Allopurinol | Allopurinol | NCS HealthCare of KY, Inc dba Vangard Labs | ANDA | Current |
| 0615-1592 | Allopurinol | Allopurinol | NCS HealthCare of KY, Inc dba Vangard Labs | ANDA | Current |
| 0615-1593 | Allopurinol | Allopurinol | NCS HealthCare of KY, Inc dba Vangard Labs | ANDA | Current |
| 0615-1593 | Allopurinol | Allopurinol | NCS HealthCare of KY, Inc dba Vangard Labs | ANDA | Current |
| 43353-186 | Allopurinol | allopurinol | Aphena Pharma Solutions - Tennessee, LLC | ANDA | Current |
| 51079-205 | Allopurinol | allopurinol | Mylan Institutional Inc. | ANDA | Current |
| 51079-205 | Allopurinol | allopurinol | Mylan Institutional Inc. | ANDA | Current |
| 51079-205 | Allopurinol | allopurinol | Mylan Institutional Inc. | ANDA | Current |
| 51079-206 | Allopurinol | allopurinol | Mylan Institutional Inc. | ANDA | Current |
| 51079-206 | Allopurinol | allopurinol | Mylan Institutional Inc. | ANDA | Current |
| 51079-206 | Allopurinol | allopurinol | Mylan Institutional Inc. | ANDA | Current |
| 55154-5454 | Allopurinol | Allopurinol | Cardinal Health, Inc. | ANDA | Current |
| 55154-5454 | Allopurinol | Allopurinol | Cardinal Health, Inc. | ANDA | Current |
| 55154-5454 | Allopurinol | Allopurinol | Cardinal Health, Inc. | ANDA | Current |
| 55154-5454 | Allopurinol | Allopurinol | Cardinal Health, Inc. | ANDA | Current |
| 55154-5454 | Allopurinol | Allopurinol | Cardinal Health 107, LLC | ANDA | Current |
| 55154-5454 | Allopurinol | Allopurinol | Cardinal Health, Inc. | ANDA | Current |
| 55154-5534 | Allopurinol | Allopurinol | Cardinal Health, Inc. | ANDA | Current |
| 55154-5534 | Allopurinol | Allopurinol | Cardinal Health, Inc. | ANDA | Current |
| 55154-5534 | Allopurinol | Allopurinol | Cardinal Health 107, LLC | ANDA | Current |
| 55154-5534 | Allopurinol | Allopurinol | Cardinal Health, Inc. | ANDA | Current |
| 55154-5534 | Allopurinol | Allopurinol | Cardinal Health, Inc. | ANDA | Current |
| 55154-5534 | Allopurinol | Allopurinol | Cardinal Health, Inc. | ANDA | Current |
| 67046-681 | Zyloprim | Allopurinol | Contract Pharmacy Services-PA | ANDA | Current |
| 67544-736 | Allopurinol | allopurinol | Aphena Pharma Solutions - Tennessee, LLC | ANDA | Current |
| 68788-6422 | Allopurinol | allopurinol | Preferred Pharmaceuticals Inc. | ANDA | Current |
| 70518-1407 | Allopurinol | allopurinol | REMEDYREPACK INC. | ANDA | Current |
| 70518-1407 | Allopurinol | allopurinol | REMEDYREPACK INC. | ANDA | Current |