Yellow round United States
Could you mean EXH 16? It is yellow and round as you describe.
If so, pill imprint EXH 16 has been identified as Exalgo 16 mg (hydromorphone), a narcotic analgesic used in the treatment of pain.
There is an image here
so you can take a look and see if it matches up.
If this is not your pill, please let us know and we can keep on searching.
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.