It is very small and round. It has a 3 on one side and a 4 on the other. Color is beige or peach in nature.
The "3" is actually a stylized "E".
Pill imprint E 4 has been identified as Hydromorphone Hydrochloride 4 mg.
You can see an image here
Description: Hydromorphone hydrochloride tablets, USP, for oral administration, are supplied as follows:
4 mg: Round, flat face, beveled-edge tan tablet, debossed “E” on one side and “4” on the other side.
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