This white, capsule pill imprinted with IG321 100mg is a gabapentin 100 MG Oral Capsule, per the NIH.
Gabapentin is a human prescription drug. The active pharmaceutical ingredient is gabapentin and is classified as, "Anti-epileptic Agent [EPC], Decreased Central Nervous System Disorganized Electrical Activity [PE]."
This pill is made by a total of 10 firms: (1) Camber Pharmaceuticals Inc., (2) Camber Pharmceuticals Inc., (3) REMEDYREPACK INC. , (4) H.J. Harkins Company, Inc., (5) Lake Erie Medical & Surgical Supply DBA Quality Care Products LLC, (6) Unit Dose Services, (7) Preferred Pharmaceuticals, Inc, (8) Golden State Medical Supply, Inc., (9) Exelan Pharmaceuticals, Inc., and (10) Aphena Pharma Solutions - Tennessee, Inc.
There is 1 other white pill that with a similar imprint: "IG321 100mg". They may be a different dosage of the same drug or a different drug entirely.