| 50090-5197 | Neostigmine methylsulfate | Neostigmine methylsulfate | A-S Medication Solutions | ANDA | Current |
| 68083-383 | Neostigmine methylsulfate | Neostigmine methylsulfate | Gland Pharma Limited | ANDA | Current |
| 68083-383 | Neostigmine methylsulfate | Neostigmine methylsulfate | Gland Pharma Limited | ANDA | Current |
| 68083-384 | Neostigmine methylsulfate | Neostigmine methylsulfate | Gland Pharma Limited | ANDA | Current |
| 68083-384 | Neostigmine methylsulfate | Neostigmine methylsulfate | Gland Pharma Limited | ANDA | Current |
| 70700-171 | Neostigmine methylsulfate | Neostigmine methylsulfate | Xiromed LLC | ANDA | Current |
| 70700-171 | Neostigmine methylsulfate | Neostigmine methylsulfate | Xiromed LLC | ANDA | Current |
| 70700-172 | Neostigmine methylsulfate | Neostigmine methylsulfate | Xiromed LLC | ANDA | Current |
| 70700-172 | Neostigmine methylsulfate | Neostigmine methylsulfate | Xiromed LLC | ANDA | Current |