This white, capsule pill imprinted with GG 606 is a HCTZ 25 MG / triamterene 37.5 MG Oral Capsule, per the NIH.
Triamterene and Hydrochlorothiazide is a human prescription drug. The active pharmaceutical ingredient is hydrochlorothiazide; triamterene and is classified as, "Decreased Renal K+ Excretion [PE], Increased Diuresis [PE], Potassium-sparing Diuretic [EPC], Increased Diuresis [PE], Thiazide Diuretic [EPC], Thiazides [Chemical/Ingredient]."
This pill is made by a total of 5 firms: (1) Sandoz Inc, (2) Rebel Distributors Corp, (3) Physicians Total Care, Inc., (4) State of Florida DOH Central Pharmacy, and (5) Bryant Ranch Prepack.
There is 1 other white pill that with a similar imprint: "GG 606". They may be a different dosage of the same drug or a different drug entirely.