This yellow, oval pill imprinted with 9 3 5213 is a HCTZ 12.5 MG / moexipril hydrochloride 7.5 MG Oral Tablet, per the NIH.
Moexipril Hydrochloride and Hydrochlorothiazide is a human prescription drug. The active pharmaceutical ingredient is hydrochlorothiazide; moexipril hydrochloride and is classified as, "Angiotensin Converting Enzyme Inhibitor [EPC], Angiotensin-converting Enzyme Inhibitors [MoA], Increased Diuresis [PE], Thiazide Diuretic [EPC], Thiazides [Chemical/Ingredient]."
This pill is made by Teva Pharmaceuticals USA Inc.
There are 2 other yellow pills that with a similar imprint: "9 3 5213". They may be a different dosage of the same drug or a different drug entirely.