This brown, oval pill imprinted with B292 is a oxcarbazepine 150 MG Oral Tablet, per the NIH.
OXCARBAZEPINE is a human prescription drug. The active pharmaceutical ingredient is oxcarbazepine and is classified as, "Anti-epileptic Agent [EPC], Decreased Central Nervous System Disorganized Electrical Activity [PE]."
This pill is made by a total of 3 firms: (1) Breckenridge Pharmaceutical, Inc., (2) REMEDYREPACK INC. , and (3) Bryant Ranch Prepack
There is 1 other brown pill that with a similar imprint: "B292". They may be a different dosage of the same drug or a different drug entirely.