About Alfa-D Tablet 0.5mcg
Alfa-D Tablet 0.5mcg is Alfacalcidol, a vitamin D analogue for renal bone disease and hypocalcemia.
Alfa-D Tablet 0.5mcg Uses
- Treats vitamin D deficiency in adults and children
- Manages renal osteodystrophy in chronic kidney disease patients
- Corrects hypocalcemia linked to hypoparathyroidism
- Supports treatment of rickets and osteomalacia
- Used alongside calcium therapy in postmenopausal osteoporosis
- Helps manage secondary hyperparathyroidism in dialysis patients
Alfa-D Tablet 0.5mcg Benefits
- Bypasses the kidney activation step needed by regular vitamin D
- Improves intestinal calcium absorption within days of starting therapy
- Strengthens bone mineral density with regular use
- Reduces bone pain linked to renal bone disease
- Lowers parathyroid hormone levels in secondary hyperparathyroidism
- Available as a small, easy to swallow tablet for daily dosing
What Experts Say
Alfacalcidol is a prodrug analogue of vitamin D that undergoes rapid hepatic hydroxylation to form active calcitriol, bypassing the renal activation step that is often impaired in chronic kidney disease. This mechanism makes it useful in patients whose kidneys cannot adequately activate native vitamin D, unlike cholecalciferol which depends fully on renal conversion.
Physicians typically start dosing at 0.25 to 1 mcg daily and titrate based on serial serum calcium, phosphate and parathyroid hormone levels, since the gap between a corrective dose and a hypercalcemic dose is narrow. Monitoring every few weeks during initial titration helps prevent soft tissue calcification linked to sustained high calcium levels.
Pakistan carries a high burden of vitamin D deficiency and chronic kidney disease, so alfacalcidol is frequently prescribed with calcium supplementation for renal osteodystrophy and secondary hyperparathyroidism. Physicians recommend periodic renal function and bone density checks in long-term users to balance skeletal benefit against vascular calcification risk.
Drug Class
- Vitamin D analogue
- Active vitamin D metabolite prodrug
Alfa-D Tablet 0.5mcg Uses in Urdu
- وٹامن ڈی کی کمی کا علاج
- گردے کی بیماری میں ہڈیوں کے مسائل کا علاج
- ہائپوپیراتھائیرائیڈزم کے باعث کیلشیم کی کمی دور کرنا
- ہڈیوں کی نرمی اور رکٹس میں مفید
- جسم میں کیلشیم جذب کرنے میں مدد دیتا ہے
- ڈائیلاسز مریضوں میں پیراتھائیرائیڈ ہارمون کو کنٹرول کرنا
Alfa-D Tablet 0.5mcg formula
How to use Alfa-D Tablet 0.5mcg?
- Take Alfa-D Tablet 0.5mcg exactly as prescribed by your doctor
- Swallow the tablet whole with a glass of water
- Take at the same time each day to maintain steady levels
- Can be taken with or without food unless your doctor advises otherwise
- Do not increase the dose on your own even if symptoms persist
- Attend scheduled blood tests to monitor calcium and kidney function
- Inform your doctor about all calcium or vitamin D supplements you use
Drug Interactions
- Thiazide diuretics: Raise the risk of hypercalcemia when combined with Alfa-D.
- Digoxin: High calcium levels increase the risk of irregular heartbeat with digoxin.
- Magnesium containing antacids: Risk of high magnesium levels in dialysis patients.
- Other vitamin D or calcium supplements: Can add to the risk of hypercalcemia.
- Phenytoin or phenobarbital: May reduce the effectiveness of alfacalcidol.
- Cholestyramine: Can reduce absorption of alfacalcidol if taken together.
Risks and warnings
- Hypercalcemia risk: Regular blood calcium monitoring is required to avoid dangerously high levels.
- Kidney function: Use with caution in patients with unstable or worsening kidney disease.
- Pregnancy: Use only if clearly needed and under direct medical supervision.
- Breastfeeding: Caution is advised as the drug can pass into breast milk.
- Existing hypercalcemia: Should not be used in patients who already have high calcium levels.
- Elderly patients: May be more sensitive to calcium related side effects.
- Immobilized patients: Carry a higher risk of hypercalcemia while on this medicine.
- Granulomatous disease: Conditions like sarcoidosis increase sensitivity to vitamin D analogues.
Alfa-D Tablet 0.5mcg Side Effects
- Nausea
- Vomiting
- Constipation
- Loss of appetite
- Headache
- Dry mouth
- Metallic taste
- Weakness or fatigue
- Excessive thirst
- Increased urination
- Itching of the skin
- Drowsiness
Storage Conditions
- Store the tablet blister strip below 30°C in a cool, dry place
- Keep away from direct sunlight and moisture
- Keep the strip in its original outer carton until use
- Keep out of reach and sight of children
- Do not store in the bathroom or near a kitchen sink
