This green, white, capsule pill imprinted with E615 is a Hydroxyzine Hydrochloride 50 MG Oral Capsule, per the NIH.
hydroxyzine pamoate is a human prescription drug. The active pharmaceutical ingredient is hydroxyzine pamoate and is classified as, "Antihistamine [EPC], Histamine Receptor Antagonists [MoA]."
This pill is made by Eon Labs, Inc.
There is 1 other green, white pill that with a similar imprint: "E615". They may be a different dosage of the same drug or a different drug entirely.