| 0603-2115 | Allopurinol | allopurinol | Par Pharmaceutical | ANDA | Current |
| 0603-2115 | Allopurinol | allopurinol | Par Pharmaceutical | ANDA | Current |
| 0603-2115 | Allopurinol | allopurinol | Par Pharmaceutical, Inc. | ANDA | Current |
| 0603-2115 | Allopurinol | allopurinol | Par Pharmaceutical | ANDA | Current |
| 0603-2115 | Allopurinol | allopurinol | Par Pharmaceutical | ANDA | Current |
| 0603-2116 | Allopurinol | allopurinol | Par Pharmaceutical | ANDA | Current |
| 0603-2116 | Allopurinol | allopurinol | Par Pharmaceutical | ANDA | Current |
| 0603-2116 | Allopurinol | allopurinol | Par Pharmaceutical | ANDA | Current |
| 0603-2116 | Allopurinol | allopurinol | Par Pharmaceutical | ANDA | Current |
| 0603-2116 | Allopurinol | allopurinol | Par Pharmaceutical, Inc. | ANDA | Current |
| 0615-8385 | Allopurinol | allopurinol | NCS HealthCare of KY, LLC dba Vangard Labs | ANDA | Current |
| 0904-6571 | Allopurinol | allopurinol | Major Pharmaceuticals | ANDA | Current |
| 0904-6571 | Allopurinol | allopurinol | Major Pharmaceuticals | ANDA | Current |
| 0904-6571 | Allopurinol | allopurinol | Major Pharamceuticals | ANDA | Current |
| 0904-6572 | Allopurinol | allopurinol | Major Pharmaceuticals | ANDA | Current |
| 0904-6572 | Allopurinol | allopurinol | Major Pharmaceuticals | ANDA | Current |
| 0904-6572 | Allopurinol | allopurinol | Major Pharamceuticals | ANDA | Current |
| 0904-6572 | Allopurinol | allopurinol | Major Pharmaceuticals | ANDA | Current |
| 0904-6572 | Allopurinol | allopurinol | Major Pharmaceuticals | ANDA | Current |
| 43063-079 | Allopurinol | allopurinol | PD-Rx Pharmaceuticals, Inc. | ANDA | Current |
| 43063-079 | Allopurinol | allopurinol | PD-Rx Pharmaceuticals, Inc. | ANDA | Current |
| 43063-079 | Allopurinol | allopurinol | PD-Rx Pharmaceuticals, Inc. | ANDA | Current |
| 43063-079 | Allopurinol | allopurinol | PD-Rx Pharmaceuticals, Inc. | ANDA | Current |
| 43063-079 | Allopurinol | allopurinol | PD-Rx Pharmaceuticals, Inc. | ANDA | Current |
| 50268-063 | Allopurinol | allopurinol | AvPAK | ANDA | Current |
| 50268-063 | Allopurinol | allopurinol | AvPAK | ANDA | Current |
| 50268-063 | Allopurinol | allopurinol | AvPAK | ANDA | Current |
| 50268-064 | Allopurinol | allopurinol | AvPAK | ANDA | Current |
| 50268-064 | Allopurinol | allopurinol | AvPAK | ANDA | Current |
| 50268-064 | Allopurinol | allopurinol | AvPAK | ANDA | Current |
| 55154-7892 | Allopurinol | allopurinol | Cardinal Health | ANDA | Current |
| 55154-7892 | Allopurinol | allopurinol | Cardinal Health | ANDA | Current |
| 55154-7981 | Allopurinol | allopurinol | Cardinal Health 107, LLC | ANDA | Current |
| 55154-7981 | Allopurinol | allopurinol | Cardinal Health | ANDA | Current |
| 55154-7981 | Allopurinol | allopurinol | Cardinal Health | ANDA | Current |
| 55289-010 | Allopurinol | allopurinol | PD-Rx Pharmaceuticals, Inc. | ANDA | Current |
| 55289-010 | Allopurinol | allopurinol | PD-Rx Pharmaceuticals, Inc. | ANDA | Current |
| 55289-010 | Allopurinol | allopurinol | PD-Rx Pharmaceuticals, Inc. | ANDA | Current |
| 55289-010 | Allopurinol | allopurinol | PD-Rx Pharmaceuticals, Inc. | ANDA | Current |
| 55289-010 | Allopurinol | allopurinol | PD-Rx Pharmaceuticals, Inc. | ANDA | Current |
| 55289-010 | Allopurinol | allopurinol | PD-Rx Pharmaceuticals, Inc. | ANDA | Current |
| 55700-035 | Allopurinol | allopurinol | Lake Erie Medical DBA Quality Care Products LLC | ANDA | Current |
| 60760-114 | Allopurinol | ALLOPURINOL | St Marys Medical Park Pharmacy | ANDA | Current |
| 63629-2111 | Allopurinol | allopurinol | Bryant Ranch Prepack | ANDA | Current |
| 63629-2111 | Allopurinol | allopurinol | Bryant Ranch Prepack | ANDA | Current |
| 63629-2111 | Allopurinol | allopurinol | Bryant Ranch Prepack | ANDA | Current |
| 63629-2112 | Allopurinol | allopurinol | Bryant Ranch Prepack | ANDA | Current |
| 63629-2112 | Allopurinol | allopurinol | Bryant Ranch Prepack | ANDA | Current |
| 63629-2113 | Allopurinol | allopurinol | Bryant Ranch Prepack | ANDA | Current |
| 63629-2113 | Allopurinol | allopurinol | Bryant Ranch Prepack | ANDA | Current |
| 67046-008 | Allopurinol | allopurinol | Contract Pharmacy Services-PA | ANDA | Current |
| 67296-1314 | Allopurinol | Allopurinol | RedPharm Drug, Inc. | ANDA | Current |
| 67296-1314 | Allopurinol | Allopurinol | RedPharm Drug, Inc. | ANDA | Current |
| 67296-1314 | Allopurinol | Allopurinol | RedPharm Drug, Inc. | ANDA | Current |
| 67544-371 | Allopurinol | allopurinol | Aphena Pharma Solutions - Tennessee, Inc. | ANDA | Current |
| 67544-988 | Allopurinol | allopurinol | Aphena Pharma Solutions - Tennessee, Inc. | ANDA | Current |
| 70518-0190 | Allopurinol | allopurinol | REMEDYREPACK INC. | ANDA | Current |
| 70518-0476 | Allopurinol | allopurinol | REMEDYREPACK INC. | ANDA | Current |