Sunvit

Introduction

Sunvit 200,000 IU Injection contains Cholecalciferol (Vitamin D3), an essential vitamin that plays a critical role in calcium and phosphate metabolism. It is vital for bone health, muscle function, and immunity. Pakistani doctors often prescribe it for vitamin D deficiency, rickets in children, and osteomalacia in adults.

How it Works

• Cholecalciferol (Vitamin D3) is naturally produced in the skin under UV light exposure.

• It undergoes hydroxylation in the liver and kidneys, converting into 1,25-dihydroxy-cholecalciferol, the biologically active form.

• This active metabolite regulates calcium and phosphate balance, working alongside parathyroid hormone and calcitonin to strengthen bones and teeth.

Primary Uses / Indications

• Prevention and treatment of Vitamin D deficiency.

• Rickets (children).

• Osteomalacia (adults).

• Vitamin D deficiency due to malabsorption syndromes, chronic diseases, or drug-induced causes.

• Supportive therapy in conditions requiring improved bone mineralization.

Dosage

• Contains Cholecalciferol 200,000 IU per 1mL injection.

• Dosage and administration (oral or intramuscular) should only be determined by a physician, based on severity of deficiency and patient profile.

Side Effects

Acute symptoms:

• Arrhythmias (irregular heartbeat).

• Nausea, vomiting.

• Mental confusion, impaired consciousness.

Chronic symptoms (long-term overdose):

• Polyuria (frequent urination).

• Polydipsia (excessive thirst).

• Weight loss.

• Kidney stone formation.

• Nephrocalcinosis (calcium deposits in kidneys).

• Soft tissue calcifications.

Drug Interactions

• Thiazide diuretics → increased risk of hypercalcemia.

• Phenytoin or barbiturates → reduced Vitamin D activity.

• Glucocorticoids → may interfere with Vitamin D metabolism.

When Not to Use

Avoid in:

• Hypersensitivity to Cholecalciferol.

• Hypercalcemia or hypercalciuria.

• Patients prone to calcium kidney stones.

• Pseudohypoparathyroidism.

Precautions

• Monitor serum and urine calcium levels during therapy.

• Avoid taking with other Vitamin D or calcium products unless supervised by a doctor.

• Dose adjustments required in patients with renal impairment.

Warnings

• Use with caution in patients with renal calcium and phosphate excretion problems.

• Discontinue or reduce dose if hypercalcemia develops.

• .Patients with sarcoidosis are at higher risk of excessive Vitamin D activation

Pregnancy & Lactation

• Consult your doctor before use during pregnancy or breastfeeding.

Storage

• Store at room temperature, away from direct light and heat.

• Keep out of reach of children.

Reviewed by: Dr. Sara Imtiaz, MBBS, FCPS (Endocrinology)

“In Pakistan, Vitamin D deficiency is widespread due to limited sun exposure and dietary intake. High-dose Cholecalciferol injections like Sunvit 200,000 IU are often prescribed for rapid correction of deficiency, especially in patients with rickets, osteomalacia, or malabsorption disorders. Regular monitoring of calcium levels is essential during therapy.”

Disclaimer:
This product description is for informational purposes only. It is not a medical prescription. Always consult a qualified healthcare professional before using Vitamin D injections for deficiency or supplementation.