D4u 200,000IU Injection – Cholecalciferol Vitamin D SupplementD4u 200,000IU Injection High Potency Vitamin D3 Support D4u Oral IM 200,000IU Injection (5mg mL) is a high strength Vitamin D3 (Cholecalciferol) supplement designed to treat and prevent Vitamin D deficiency in both children and adults. Vitamin D3 plays a crucial role in regulating calcium and phosphate balance, ensuring healthy bones, muscles, and overall metabolic function. In children, D4u is particularly effective in preventing and treating