nidcal cl tablet - Calcitriol (0.25mcg) + Calcium Carbonate (500mg) medicine

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🏭 Olcare Laboratories 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 23, 2026
⚠️ Nephrotoxicity Risk 📋 Prescription Required 💊 Generic Available
Medically Reviewed
12 min read
Evidence: Well-established for approved indications.
Reviewed by
SaathiMed Expert Panel | Sep 23, 2026

When to Call Your Doctor IMMEDIATELY

  • Severe nausea, vomiting, or abdominal pain
  • Confusion or altered mental status
  • Irregular heartbeat or palpitations
  • Decreased urine output or blood in urine
  • Severe bone pain or muscle weakness
  • Swelling of face, lips, or throat
  • Yellowing of skin or eyes

If experiencing severe symptoms, call emergency services immediately.

What is nidcal cl tablet used for?

This medicine is a combination of calcitriol and calcium carbonate used to treat and prevent calcium and vitamin D deficiency, osteoporosis, and related bone disorders. It works by increasing calcium absorption and promoting healthy bone formation.

  • Generic Name: Calcitriol (0.25mcg) + Calcium Carbonate (500mg)
  • Manufacturer: Olcare Laboratories
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 nidcal cl tablet के बारे में (Hindi Summary)

उपयोग: यह दवा कैल्सिट्रियोल और कैल्शियम कार्बोनेट का संयोजन है, जिसका उपयोग हड्डियों की कमजोरी, ऑस्टियोपोरोसिस, रिकेट्स, ऑस्टियोमलेशिया और कैल्शियम की कमी के इलाज में किया जाता है। यह शरीर में कैल्शियम के अवशोषण को बढ़ाती है और हड्डियों को मजबूत बनाती है। यह दवा डॉक्टर के परामर्श से ही लेनी चाहिए।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में जी मिचलाना, कब्ज, पेट में गड़बड़ी और मुँह में धातु जैसा स्वाद शामिल हैं। गंभीर दुष्प्रभाव दुर्लभ हैं, लेकिन अगर रक्त में कैल्शियम का स्तर बहुत अधिक हो जाए तो भ्रम, कमजोरी, अनियमित दिल की धड़कन और गुर्दे की पथरी हो सकती है। ऐसे लक्षण दिखने पर तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: इस दवा को डॉक्टर के बताए अनुसार ही लें। इसे भोजन के साथ लें ताकि अवशोषण बेहतर हो और पेट की परेशानी कम हो। पर्याप्त पानी पिएं। कैल्शियम और विटामिन डी की अन्य गोलियाँ बिना डॉक्टर की सलाह के न लें। नियमित रूप से रक्त में कैल्शियम और गुर्दे की जाँच कराते रहें। गर्भवती या स्तनपान कराने वाली महिलाएँ डॉक्टर से सलाह लें।

💡 Did You Know? The first generic medicine was introduced in India in 1970 after the Patents Act was amended.

💊 nidcal cl tablet Uses & Benefits

[{"condition":"Osteoporosis","description":"Helps maintain bone mineral density and reduces fracture risk when combined with adequate calcium intake.","evidence":"Well-established"},{"condition":"Osteomalacia","description":"Treats softening of bones due to defective bone mineralization, often caused by vitamin D deficiency.","evidence":"Well-established"},{"condition":"Rickets","description":"Used in children to correct defective bone growth caused by vitamin D deficiency.","evidence":"Well-established"},{"condition":"Hypocalcemia","description":"Corrects low blood calcium levels, especially in chronic kidney disease and hypoparathyroidism.","evidence":"Well-established"},{"condition":"Chronic kidney disease-related bone disease","description":"Helps manage secondary hyperparathyroidism and renal osteodystrophy.","evidence":"Well-established"},{"condition":"Hypoparathyroidism","description":"Used to maintain normal calcium levels when parathyroid hormone is deficient.","evidence":"Well-established"}]

Off-label uses: [{"condition":"Psoriasis","description":"Topical calcitriol is used for psoriasis, but oral use is not standard.","evidence":"Limited"},{"condition":"Prevention of corticosteroid-induced osteoporosis","description":"Sometimes prescribed along with steroids to protect bone health.","evidence":"Moderate"}]

Primary treatment for: Osteoporosis

Also treats: Osteomalacia, Rickets, Hypocalcemia, Chronic kidney disease-related bone disease, Hypoparathyroidism

📋 Drug Information

Generic Name(s)Calcitriol (0.25mcg) + Calcium Carbonate (500mg)
Brand Namenidcal cl tablet
ManufacturerOlcare Laboratories
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassPAIN ANALGESICS
Action Class
Route of AdministrationOral
StorageStore at room temperature between 15°C and 30°C. Protect from light and moisture. Keep in the original container.
Shelf Life24 months from the date of manufacture.
WHO GuidelineNot established from the available information.
ICMR GuidelineNot established from the available information.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Always take this medicine with a meal to enhance absorption and minimize stomach upset.
2
Encourage patients to maintain adequate hydration to prevent kidney stone formation.
3
Monitor serum calcium and phosphate levels regularly, especially during dose adjustments.
4
Advise patients to avoid taking additional calcium or vitamin D supplements without medical advice.
5
Caution patients about the signs of hypercalcemia such as confusion, excessive thirst, and frequent urination.
6
Consider checking 24-hour urinary calcium in patients with a history of kidney stones.
7
In elderly patients, start with a lower dose and titrate slowly based on calcium levels.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

Bone pain
This medicine is commonly prescribed for bone pain due to calcium and vitamin D deficiency.
Likely Use
Muscle weakness
May be used if caused by hypocalcemia or vitamin D deficiency.
Likely Use
Fever
This medicine is not a fever reducer.
Not Primary
Joint swelling
Not a primary treatment for inflammatory joint conditions.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionCalcitriol is rapidly absorbed from the intestine. Calcium carbonate requires an acidic environment for optimal dissolution and absorption; it is best taken with food. Not established from the available information for specific bioavailability values of this combination.
DistributionCalcitriol is distributed widely in the body and is transported in the blood bound to vitamin D-binding protein. Calcium is distributed mainly in bones and teeth, with a small fraction in extracellular fluids. Not established from the available information for specific volume of distribution.
Protein BindingCalcitriol is approximately 99.9% bound to vitamin D-binding protein and albumin. Calcium is about 40% bound to plasma proteins, mainly albumin.
MetabolismCalcitriol is metabolized in the liver and intestine via CYP24A1 to less active metabolites. Calcium is not metabolized; it is absorbed and excreted as needed.
Half-LifeThe elimination half-life of calcitriol is approximately 5-8 hours. Calcium is excreted primarily in urine and feces, with a half-life not applicable.
ExcretionCalcitriol metabolites are excreted mainly in bile and feces, with a small amount in urine. Excess calcium is excreted in urine and feces.
BioavailabilityCalcitriol is well absorbed; bioavailability is not well established but is considered high. Calcium carbonate absorption is about 30% depending on gastric acidity and food intake.
Onset of ActionCalcitriol begins to raise calcium levels within hours, but clinical effects on bone may take weeks to months.
Peak Plasma TimePeak plasma concentration of calcitriol occurs about 3-6 hours after oral administration. Calcium peak occurs within 2-4 hours after intake.
Duration of ActionThe effect of calcitriol lasts about 24-48 hours. Calcium effects depend on ongoing intake and regulation.

How It Works

This medicine combines calcitriol, the active form of vitamin D3, with calcium carbonate. Calcitriol binds to vitamin D receptors in the intestine, bone, kidney, and parathyroid glands. In the intestine, it increases the production of calcium-binding proteins, which enhances calcium absorption from food. In the kidney, it reduces calcium excretion and increases phosphate reabsorption. In bone, it helps regulate bone remodeling by promoting normal mineralization. Calcium carbonate provides elemental calcium, which is essential for bone formation and various cellular functions. Together, they correct calcium and vitamin D deficiency and support healthy bone metabolism.

Mechanism Steps

1
Calcitriol binding to VDR: Calcitriol binds to vitamin D receptors in target tissues, forming a complex that enters the nucleus.
2
Gene transcription: The complex regulates genes involved in calcium transport, bone matrix proteins, and cell differentiation.
3
Increased calcium absorption: In the intestine, calcitriol increases the synthesis of calbindin, which transports calcium across the intestinal lining.
4
Calcium supplementation: Calcium carbonate dissolves in the stomach and releases calcium ions, which are absorbed in the small intestine.
5
Bone mineralization: The combined effect ensures adequate calcium and phosphate for proper bone mineralization and strength.

💡 How to Take nidcal cl tablet

Strength: Calcitriol 0.25 mcg + Calcium Carbonate 500 mg softgel capsule

1Swallow the softgel capsule whole with a glass of water.
2Take it with a meal to improve absorption and reduce stomach upset.
3Do not crush, chew, or open the capsule.
4Follow your doctor's instructions regarding timing and frequency.
5Do not take extra doses without consulting your doctor.

Dosage Information

Adult DosageThe usual adult dose of this medicine is one softgel capsule once daily or as directed by your doctor. The dose may be adjusted based on your serum calcium levels, kidney function, and the condition being treated. It is important to take this medicine with food to enhance absorption and reduce stomach upset. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician.
Elderly DosageElderly patients may be more sensitive to the effects of calcitriol and calcium. Start with a lower dose and monitor serum calcium levels closely. Dose must be individualized by a qualified clinician.
Renal ImpairmentUse with caution in patients with renal impairment. Dose adjustment may be necessary based on creatinine clearance and serum calcium levels. Regular monitoring is required.
Hepatic ImpairmentNo specific dose adjustment is established for hepatic impairment. Use with caution and monitor liver function and calcium levels.
Maximum Daily DoseThe maximum daily dose should not exceed one softgel capsule unless specifically prescribed by a doctor. Do not exceed the recommended dose.

Dosage Timeline

🌅 Morning ❌ ☀️ Afternoon ❌ 🌆 Evening ❌ 🌙 Night ❌

🍽️ Food Timing Guide

With food
Take with meals
Enhances absorption and reduces stomach upset.
Dairy products
Moderate intake
High calcium content may increase hypercalcemia risk.
Spinach, rhubarb
Separate timing
Oxalates reduce calcium absorption.
Whole grains, bran
Separate timing
Phytates interfere with calcium absorption.
Caffeine
Limit intake
Increases calcium excretion.

⏰ What to Do If You Miss a Dose

📌 Less than half the dosing interval has passed
→ Take the missed dose as soon as you remember.
💡 Continue with the regular schedule.
📌 More than half the dosing interval has passed
→ Skip the missed dose.
💡 Do not double dose to catch up.

⚠️ Side Effects of nidcal cl tablet

✅ Common Side Effects

Nausea (Common (5-10%))
Take with food. If persistent, consult your doctor.
Constipation (Common (5-10%))
Increase fluid and fiber intake. Consult doctor if severe.
Stomach upset (Common (5-10%))
Take with meals to reduce discomfort.
Metallic taste (Uncommon (1-5%))
Usually temporary. Drink water and maintain oral hygiene.
Increased thirst (Uncommon (1-5%))
Drink water. If excessive, check blood calcium.

🚨 Serious Side Effects

Hypercalcemia (Rare (<0.1%))
Seek immediate medical attention if you experience confusion, severe weakness, or irregular heartbeat.
Kidney stones (Rare (<0.1%))
Report severe flank pain or blood in urine to your doctor immediately.
Nephrocalcinosis (Rare (<0.1%))
Regular kidney function tests are advised. Report decreased urine output.
Cardiac arrhythmias (Rare (<0.1%))
Seek emergency care if you feel palpitations or chest pain.

⚠️ Rare Side Effects

Allergic reactions
Seek immediate medical help if you notice rash, swelling, or difficulty breathing.
Calcification of soft tissues
Requires medical evaluation and monitoring.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Thiazide diuretics Major
Digoxin Major
Calcium supplements Major
Corticosteroids Moderate
Orlistat Moderate
Cholestyramine Moderate
Aluminum-containing antacids Minor
Iron supplements Minor
Phenytoin Moderate
Ketoconazole Moderate

🚨 Major Interactions

  • Thiazide diuretics
  • Digoxin
  • Calcium supplements

⚡ Moderate Interactions

  • Corticosteroids
  • Orlistat
  • Cholestyramine

🍷 Alcohol Interaction

Alcohol may impair calcium absorption and bone health. It is advisable to limit or avoid alcohol while taking this medicine, as it can counteract the beneficial effects on bones and increase the risk of falls and fractures.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Hypercalcemia","Hypercalciuria","History of calcium-containing kidney stones","Severe renal impairment","Hypersensitivity to calcitriol or calcium carbonate","Sarcoidosis","Hypervitaminosis D"]

⚠️ Warnings & Precautions

["Monitor serum calcium and phosphate regularly.","Avoid concurrent use with other calcium or vitamin D supplements unless prescribed.","Use with caution in patients with kidney disease or kidney stones.","Advise patients to maintain adequate fluid intake.","Avoid in patients with hypercalcemia or hypercalciuria.","Use with caution in patients with heart disease, especially those on digoxin.","Not recommended for children without specialist supervision.","Elderly patients may be more sensitive to hypercalcemia."]

🤱 Lactation Safety

Calcitriol is excreted in human milk. Calcium is also present in breast milk. The amount in breast milk is not sufficient to cause adverse effects in the infant, but the mother should consult her doctor before using this medicine while breastfeeding.

💊 Overdose Management

Overdose can cause hypercalcemia, hypercalciuria, and potentially cardiac arrhythmias. Treatment includes discontinuation of the medicine, hydration, and monitoring of serum calcium and electrolytes. In severe cases, hospitalization and treatment with intravenous fluids, diuretics, or corticosteroids may be required. Seek immediate medical attention if overdose is suspected.

⏰ Missed Dose

If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not take a double dose to make up for a missed one.

Additional Safety Advice

General Safety

Take this medicine exactly as prescribed by your doctor. Do not increase or decrease the dose on your own. Swallow the softgel capsule whole with a glass of water, preferably with a meal to improve absorption and reduce stomach upset. Avoid taking this medicine with large amounts of dairy products or calcium-fortified foods unless your doctor approves, as this can raise calcium levels too high. Drink plenty of water throughout the day to help prevent kidney stones. Your doctor may ask for regular blood tests to check calcium, phosphate, and kidney function. Inform your doctor if you have a history of kidney stones, heart disease, or sarcoidosis. Do not take antacids or other calcium supplements without consulting your doctor. If you are pregnant, planning pregnancy, or breastfeeding, speak to your doctor before using this medicine. Keep this medicine out of reach of children. Store it in a cool, dry place away from direct sunlight.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients are more prone to hypercalcemia and kidney impairment. Start with a lower dose and monitor calcium levels frequently. Ensure adequate hydration and fall prevention strategies.

🤰 Pregnancy Planning (TTC)

If you are planning pregnancy, consult your doctor before taking this medicine. Adequate calcium and vitamin D are important for fetal bone development, but doses must be carefully managed to avoid hypercalcemia.

🏥 Post-Surgery Considerations

After surgery, especially orthopedic surgery, this medicine may be prescribed to support bone healing. Follow your surgeon's instructions regarding dosage and monitoring. Inform your surgeon about all medicines you are taking.

🦷 Dental Procedures

Inform your dentist if you are taking this medicine, especially before dental surgery, as it may affect bone healing and calcium levels. No specific precautions are usually needed, but monitoring may be advised.

💚 Lifestyle Tips for Better Results

🏃
Maintain a healthy weight to reduce stress on bones.
🥗
Engage in regular weight-bearing exercises like walking or light weightlifting.
😴
Ensure adequate sun exposure for natural vitamin D synthesis.
💧
Avoid smoking and limit alcohol consumption.
🧘
Include calcium-rich foods in your diet such as milk, yogurt, and leafy greens.
🌞
Get adequate sleep to support bone health.

🏋️ Exercise Considerations

Weight-bearing exercises are beneficial for bone health, but avoid high-impact activities if you have osteoporosis or are at risk of fractures. Consult your doctor before starting any new exercise regimen.

🥗 Diet Recommendations

Include calcium-rich foods like dairy, almonds, and broccoli.
Ensure adequate vitamin D from sunlight and fortified foods.
Limit caffeine and alcohol intake.
Stay well hydrated.
Avoid excessive salt and processed foods.

💼 Impact on Daily Work & Life

This medicine is generally safe to take while working. It does not usually cause drowsiness or impair driving. However, if you experience dizziness or confusion due to high calcium levels, avoid driving or operating heavy machinery and consult your doctor.

🛑 When to Stop This Medicine

Do not stop taking this medicine without consulting your doctor. If you experience severe side effects or your calcium levels become too high, your doctor may advise you to stop or adjust the dose. Always follow medical guidance.

📅 Long-Term Use Effects

Long-term use of this medicine requires regular monitoring of serum calcium, phosphate, and kidney function. Prolonged hypercalcemia can lead to kidney stones, nephrocalcinosis, and soft tissue calcification. It is important to follow up with your doctor periodically to adjust the dose and prevent complications.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Dietary calcium and vitamin D

Increasing intake of calcium-rich foods and safe sun exposure can help maintain bone health.

Evidence: Well-established
Weight-bearing exercises

Regular physical activity helps strengthen bones and improve balance.

Evidence: Well-established
Other vitamin D analogs

Alfacalcidol or cholecalciferol may be used as alternatives based on individual needs.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

No specific interactions with vaccines are known. However, maintain your regular vaccination schedule, especially for influenza and pneumonia, as respiratory infections can affect bone health and overall well-being.

📦 Storage Guide

✅ DO

Store at room temperature (15-30°C)

❌ DON'T

Do not refrigerate unless specified

✅ DO

Keep in original container

❌ DON'T

Do not transfer to unmarked containers

✅ DO

Keep away from direct sunlight

❌ DON'T

Do not store in bathroom cabinet

✈️ Traveling with This Medicine

Carry this medicine in its original packaging with a copy of your prescription. Store it in a cool, dry place away from direct sunlight. If traveling across time zones, adjust the timing of your dose gradually as advised by your doctor. Keep enough supply for the entire trip. Check customs regulations for carrying prescription medicines.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 62-year-old woman with postmenopausal osteoporosis
She was prescribed this medicine along with a healthy diet. After 6 months, her bone density test showed improvement. She reported mild constipation initially, which resolved after increasing fiber and water intake. She emphasizes taking the medicine with breakfast.
💡 Lesson: Consistent use with dietary modifications can significantly improve bone health and manage side effects.
👤 A 45-year-old man with chronic kidney disease and hypocalcemia
He started this medicine under specialist care. His calcium levels normalized over several weeks. He had to undergo regular blood tests to monitor calcium and kidney function. He advises others to never skip monitoring appointments.
💡 Lesson: Regular monitoring is crucial for safety and effectiveness, especially in kidney disease.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: Calcitriol starts working within hours to raise calcium levels, but improvements in bone health may take several weeks to months.

Q: Can I take this medicine with other supplements?

A: Do not take additional calcium or vitamin D supplements without consulting your doctor, as it may lead to high calcium levels.

Q: Is this medicine safe for my kidneys?

A: It can be safe if monitored properly. Regular kidney function tests are advised, especially if you have kidney disease.

Q: What should I do if I miss a dose?

A: Take it as soon as you remember. If it's almost time for the next dose, skip the missed dose and continue with your regular schedule. Do not double dose.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Can I take this medicine long-term?
  • Will it affect my kidney function?
  • Can I drive after taking this medicine?
  • Does it interact with my blood pressure medicine?
  • What if I miss a dose?
  • Can I drink alcohol while taking this?

🔄 Substitutes for nidcal cl tablet

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

🛑 Myths vs. Facts

  • Myth: This medicine can be taken without a doctor's prescription.
    Fact: This is a prescription medicine and should only be taken under medical supervision.
  • Myth: More calcium always means stronger bones.
    Fact: Excess calcium can be harmful and lead to kidney stones and other complications.
  • Myth: This medicine can replace a healthy diet.
    Fact: It supplements but does not replace a balanced diet rich in calcium and vitamin D.

🔄 Alternative Options

Generic Alternatives

  • Calcitriol + Calcium Carbonate softgel capsules

Brand Alternatives

  • Affocal-CT Softgel

📊 Comparison with Similar Medicines

[{"medicine":"Calcitriol + Calcium Carbonate","composition":"Calcitriol 0.25 mcg + Calcium Carbonate 500 mg","form":"Softgel","use":"Osteoporosis, hypocalcemia"},{"medicine":"Alfacalcidol + Calcium Carbonate","composition":"Alfacalcidol 0.25 mcg + Calcium Carbonate 500 mg","form":"Tablet","use":"Osteoporosis, hypocalcemia"},{"medicine":"Cholecalciferol + Calcium Carbonate","composition":"Cholecalciferol 60000 IU + Calcium Carbonate 500 mg","form":"Tablet","use":"Vitamin D deficiency"}]

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