Overview & Mechanism of Action
- Infant D Capsules ($30\text{-capsule}$ pack of single-dose twist-off liquid softgels containing Vitamin D3 $400\text{ IU} / 10\mu\text{g}$) delivers essential cholecalciferol tailored for neonatal and infant physiological development:
- Intestinal Calcium & Phosphate Absorption: Converted in the liver to 25-hydroxyvitamin D3 [25(OH)D3] and subsequently in the kidneys to active 1,25-dihydroxyvitamin D3 [1,25(OH)2D3]. This active hormone upregulates epithelial calcium transport proteins (TRPV6) and calbindin within the enterocyte microvilli, maximizing intestinal absorption of dietary calcium and phosphate.
- Skeletal Mineralization & Rickets Prevention: Maintains optimal physiological serum calcium and phosphorus balances required for proper epiphyseal growth plate calcification, preventing osteomalacia, craniotabes, delayed fontanelle closure, and nutritional rickets in growing infants.
- Innate & Adaptive Immune Modulation: Binds to Vitamin D Receptors (VDR) present on dendritic cells, macrophages, and monocytes, stimulating the transcription of endogenous antimicrobial peptides (such as cathelicidin) to support early mucosal and respiratory immune resistance.
Clinical Indications & Uses
- Infant D Capsules 30s is indicated for:
- Daily nutritional supplementation for exclusively or partially breastfed infants from birth to prevent Vitamin D deficiency and nutritional rickets
- Supporting skeletal frame formation, spinal calcification, and strong primary tooth enamel development during rapid growth phases
- Enhancing innate immune system defense against common infant upper respiratory tract infections
Usage Guidance & Safety Precautions
Administration:
- Twist or snip off the narrow tail of the capsule. Squeeze the liquid contents directly into the infant's mouth, onto a clean spoon, or mix into expressed breast milk, infant formula, or warm food. Do not give the outer gelatin capsule shell to the infant to swallow.
Recommended Dosage:
- Infants and Young Children (0 to 3 years): Administer 1 capsule ($400\text{ IU}$) daily, or as specifically advised by a pediatrician or infant care specialist.
Precautions & Warnings:
- For pediatric oral administration of the inner liquid only. Ensure the outer empty softgel shell is safely discarded and never ingested directly by the infant to prevent potential choking hazards. Do not exceed the recommended daily intake unless prescribed by a doctor to prevent hypercalcemia or hypervitaminosis D toxicity. Store below $25^\circ\text{C}$ in a cool, dry place protected from heat, moisture, and direct sunlight. Keep out of reach of children.