Vitamin D3 1000Iu Tabs 90S Wellvalens

Overview & Mechanism of Action

• Vitamin D3 Tablets ($90\text{-tablet}$ bottle containing Cholecalciferol $1,000\text{ IU} / 25\mu\text{g}$) provides high-bioavailability Vitamin D3 to regulate systemic calcium and mineral metabolism:
• Endocrine Activation & Calcium Homeostasis: Hydroxylated in the liver to $25$-hydroxyvitamin D3 ($25(\text{OH})\text{D}_3$) and subsequently in the kidneys to active calcitriol ($1,25(\text{OH})_2\text{D}_3$). Calcitriol binds nuclear Vitamin D Receptors (VDR), upregulating intestinal expression of calcium-binding proteins (calbindins) to maximize dietary calcium and phosphorus absorption.
• Skeletal Mineralization & Bone Density: Maintains optimal serum calcium-phosphate product concentrations necessary for osteoblast activity, bone matrix mineralization, and prevention of osteomalacia and osteoporosis.
• Immunomodulatory Defense Mechanism: Modulates adaptive immune response and stimulates innate immunity by promoting antimicrobial peptide synthesis (such as cathelicidin) in respiratory epithelial cells and macrophages.

Clinical Indications & Uses

• Vitamin D3 1000IU Tablets 90s (Wellvalens) is indicated for:
• Prevention and treatment of Vitamin D deficiency or insufficiency in adults and elderly individuals
• Adjunctive management alongside primary osteoporosis medications or calcium supplements to preserve bone mineral density
• Supporting immune health, muscle tone, and fall reduction in aging or housebound populations with limited sun exposure

Usage Guidance & Safety Precautions

Administration:

• Swallow 1 tablet daily with a main meal containing dietary fats to optimize lymphatic absorption.

Recommended Dosage:

• Adults: Take 1 tablet ($1,000\text{ IU}$) daily, or as advised by a healthcare provider.

Precautions & Warnings:

• For oral dietary administration. Contraindicated in patients with hypercalcemia, hypercalciuria, hypervitaminosis D, or severe nephrolithiasis. Patients with sarcoidosis or renal impairment should use only under close clinical monitoring of serum calcium levels. Store below $25^\circ\text{C}$ in a cool, dry place away from direct heat and light. Keep out of reach of children.