D TRES INJECTION 5SD TRES Injection 5s: D TRES Injection 5s High Potency Vitamin D3 (Cholecalciferol) for Bone & Immune Health D TRES Injection contains Cholecalciferol (Vitamin D3), a fat soluble vitamin essential for the absorption of calcium and phosphorus, promoting healthy bones, teeth, and immune system function. It is commonly used to treat or prevent Vitamin D deficiency, osteomalacia, rickets, and osteoporosis, especially in individuals who cannot take oral