Kalzin 3L Injection: Complete Guide to Uses, Dosage, and Safety
Clinical Reference Standards: CDSCO (Central Drugs Standard Control Organisation), Indian Pharmacopoeia (IP) & WHO | Last Updated: September 2026
When to Call Your Doctor IMMEDIATELY
- Severe allergic reaction: swelling of face, lips, throat, difficulty breathing.
- Signs of hypercalcemia: confusion, excessive thirst, frequent urination, irregular heartbeat.
- Severe injection site pain, redness, or swelling that worsens.
- Chest pain or palpitations.
- Decreased urine output or blood in urine.
- Severe abdominal pain or vomiting.
- Yellowing of skin or eyes.
If experiencing severe symptoms, call emergency services immediately.
What is kalzin 3l injection used for?
This medicine is a high-dose vitamin D3 injection used to treat severe vitamin D deficiency. It is given by a healthcare professional as a single intramuscular injection of 300,000 IU, often followed by oral maintenance therapy.
- Generic Name: Vitamin D3 (300000IU)
- Manufacturer: Unimarck Pharma India Ltd
- Form: Allopathy
- Pregnancy Category: Consult doctor
- Prescription Required: Yes
🇮🇳 kalzin 3l injection के बारे में (Hindi Summary)
उपयोग: यह दवा विटामिन डी3 का एक उच्च शक्ति वाला इंजेक्शन है, जिसका उपयोग गंभीर विटामिन डी की कमी को तेजी से ठीक करने के लिए किया जाता है। यह आमतौर पर उन लोगों के लिए दी जाती है जिनमें हड्डियों में दर्द, मांसपेशियों में कमजोरी, और बार-बार फ्रैक्चर होने जैसे लक्षण होते हैं। यह इंजेक्शन डॉक्टर द्वारा मांसपेशियों में लगाया जाता है और इसकी खुराक रोगी की स्थिति के अनुसार तय की जाती है।
साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में इंजेक्शन लगाने की जगह पर दर्द या लालिमा, सिरदर्द, जी मिचलाना, और मुंह में धातु जैसा स्वाद शामिल हो सकते हैं। गंभीर दुष्प्रभाव दुर्लभ हैं, लेकिन अगर कैल्शियम का स्तर बहुत अधिक बढ़ जाए तो भ्रम, कमजोरी, अनियमित दिल की धड़कन, और गुर्दे की पथरी हो सकती है। किसी भी असामान्य लक्षण पर तुरंत डॉक्टर से संपर्क करें।
सुरक्षा सलाह: यह दवा केवल डॉक्टर या स्वास्थ्यकर्मी द्वारा ही दी जानी चाहिए। खुद से इंजेक्शन न लगाएं। अगर आपको गुर्दे की पथरी, हृदय रोग, या सारकॉइडोसिस है तो डॉक्टर को बताएं। डॉक्टर की सलाह के बिना विटामिन डी की अन्य खुराकें न लें। पर्याप्त पानी पिएं। गर्भवती या स्तनपान कराने वाली महिलाएं डॉक्टर से परामर्श करें।
💊 kalzin 3l injection Uses & Benefits
[{"condition":"Severe Vitamin D Deficiency","description":"Used to rapidly restore vitamin D levels in individuals with severe deficiency, often defined as serum 25-hydroxyvitamin D below 10 ng/mL, especially when oral therapy is ineffective or impractical.","evidence":"Well-established"},{"condition":"Osteomalacia","description":"Helps treat osteomalacia, a condition of softened bones due to defective mineralization, by providing the necessary vitamin D to improve calcium and phosphate absorption.","evidence":"Well-established"},{"condition":"Rickets","description":"In children, this medicine may be used to treat rickets, a disorder of impaired bone growth due to vitamin D deficiency, under strict medical supervision.","evidence":"Well-established"},{"condition":"Hypocalcemia due to Vitamin D Deficiency","description":"Corrects low blood calcium levels that result from vitamin D deficiency by enhancing intestinal calcium absorption.","evidence":"Well-established"},{"condition":"Chronic Kidney Disease-Associated Mineral Bone Disorder","description":"May be used in select patients with chronic kidney disease to manage vitamin D deficiency, but requires careful monitoring due to risk of hypercalcemia.","evidence":"Moderate"}]
Off-label uses: [{"condition":"Fibromyalgia","description":"Sometimes prescribed off-label for fibromyalgia pain when vitamin D deficiency is present, but evidence for benefit is limited and inconsistent.","evidence":"Limited"},{"condition":"Multiple Sclerosis","description":"High-dose vitamin D has been studied as a potential adjunct in multiple sclerosis, but it is not a standard treatment and should only be used under specialist care.","evidence":"Limited"},{"condition":"Psoriasis","description":"Vitamin D analogs are used topically for psoriasis, but injectable high-dose vitamin D is not a standard treatment for this condition.","evidence":"Limited"}]
Primary treatment for: Vitamin D Deficiency
Also treats: Osteomalacia, Rickets, Hypocalcemia, Chronic Kidney Disease-Associated Mineral Bone Disorder
📋 Drug Information
| Generic Name(s) | Vitamin D3 (300000IU) |
| Brand Name | kalzin 3l injection |
| Manufacturer | Unimarck Pharma India Ltd |
| Packaging / Form | Varies by brand (Allopathy) |
| Therapeutic Class | VITAMINS MINERALS NUTRIENTS |
| Action Class | Vitamins |
| Route of Administration | Parenteral (intramuscular injection) |
| Storage | Store in a cool, dry place away from direct sunlight. Do not freeze. Keep out of reach of children. Store in the original packaging to protect from light. |
| Shelf Life | 24 months from the date of manufacture. |
| WHO Guideline | Not established from the available information. |
| ICMR Guideline | Not established from the available information. |
👨⚕️ Doctor's Practical Tips
Evidence-based practical advice from experienced clinicians
🔍 Is This Medicine Right for Your Symptom?
Educational reference. Always consult a doctor for diagnosis.
🔬 How This Medicine Works (Pharmacology)
Pharmacokinetics
How It Works
This medicine delivers cholecalciferol, which is biologically inactive. In the liver, it is converted to 25-hydroxycholecalciferol (calcidiol), and then in the kidneys to 1,25-dihydroxycholecalciferol (calcitriol), the active form. Calcitriol binds to vitamin D receptors in the intestine, bone, kidney, and parathyroid glands. This binding increases intestinal absorption of calcium and phosphate, stimulates bone mineralization, and regulates parathyroid hormone levels. The overall effect is to restore normal calcium and phosphate homeostasis and improve bone health.
Mechanism Steps
💡 How to Take kalzin 3l injection
Strength: Injection: 300,000 IU
Dosage Information
| Adult Dosage | The usual adult dose of this medicine is 300,000 IU given as a single intramuscular injection. In some cases, a second dose may be given after 3-4 weeks, depending on the severity of deficiency and clinical response. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function, and serum vitamin D levels. Do not self-administer. |
| Pediatric Dosage | Pediatric dosing is not established from available information. Consult a pediatrician. |
| Elderly Dosage | Elderly patients may require lower doses due to reduced renal function and increased risk of hypercalcemia. Dose must be individualized by a qualified clinician. |
| Renal Impairment | In patients with renal impairment, this medicine should be used with caution. Dose adjustment may be necessary, and monitoring of calcium and phosphate levels is essential. Consult a nephrologist. |
| Hepatic Impairment | In patients with hepatic impairment, activation of vitamin D may be reduced. Dose adjustment may be needed, and monitoring of vitamin D levels is recommended. Consult a hepatologist. |
| Maximum Daily Dose | Not applicable for this high-dose injectable form. It is not intended for daily use. |
Dosage Timeline
🍽️ Food Timing Guide
⏰ What to Do If You Miss a Dose
⚠️ Side Effects of kalzin 3l injection
✅ Common Side Effects
🚨 Serious Side Effects
⚠️ Rare Side Effects
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 | |
| Mineral oil | Minor |
🚨 Major Interactions
- Thiazide diuretics
- Digoxin
- Calcium supplements
⚡ Moderate Interactions
- Corticosteroids
- Orlistat
- Cholestyramine
🍷 Alcohol Interaction
Alcohol may impair the activation of vitamin D in the liver and kidneys, potentially reducing the effectiveness of this medicine. It is advisable to limit or avoid alcohol while undergoing treatment for vitamin D deficiency.
🔎 Check Your Other Medicines
Educational tool. Always confirm with your doctor or pharmacist.
🛡️ Safety & Warnings
🚫 Contraindications
["Hypercalcemia","Hypervitaminosis D","Severe renal impairment without specialist supervision","Known hypersensitivity to vitamin D3 or any component of the formulation","Sarcoidosis (may increase sensitivity to vitamin D)"]
⚠️ Warnings & Precautions
["Administer only under medical supervision.","Do not use if you have high blood calcium levels.","Avoid concurrent use of other vitamin D supplements unless prescribed.","Use with caution in patients with kidney stones or kidney disease.","Monitor calcium levels in patients on thiazide diuretics or digoxin.","Inform your doctor if you are pregnant or breastfeeding.","Do not drive or operate machinery if you feel dizzy after injection."]
🤱 Lactation Safety
Vitamin D3 is excreted in breast milk, but at normal doses it is considered safe. High-dose injectable therapy should be used with caution during breastfeeding, as it may affect the infant's vitamin D levels. Consult your doctor.
💊 Overdose Management
Overdose of this medicine can cause hypercalcemia, hypercalciuria, and hyperphosphatemia. Symptoms include nausea, vomiting, polyuria, polydipsia, weakness, and confusion. Treatment is supportive and includes discontinuation of vitamin D, hydration, and in severe cases, corticosteroids or calcitonin. Seek immediate medical attention if overdose is suspected.
⏰ Missed Dose
This medicine is usually given as a single dose or at intervals determined by your doctor. If you miss a scheduled appointment for your injection, contact your doctor to reschedule as soon as possible. Do not attempt to self-administer a double dose.
Additional Safety Advice
This medicine must be given by a healthcare professional only. Do not attempt to self-administer. Inform your doctor if you have a history of kidney stones, heart disease, sarcoidosis, or hyperparathyroidism. Avoid taking additional vitamin D supplements without your doctor's approval, as this can lead to toxic levels. Your doctor may monitor your blood calcium and vitamin D levels periodically. Drink plenty of water to help prevent kidney stones. If you are pregnant or breastfeeding, tell your doctor before receiving this injection. Do not drive or operate heavy machinery if you feel dizzy or unwell after the injection. Keep all follow-up appointments for blood tests.
👴 Special Considerations for Elderly
💡 For Patients Above 65
Elderly patients are at higher risk of vitamin D deficiency and may require lower doses due to reduced renal function. Monitor calcium levels closely to avoid hypercalcemia.
🤰 Pregnancy Planning (TTC)
If you are planning pregnancy, ensure your vitamin D levels are adequate. High-dose injections are not routinely recommended during pregnancy; consult your doctor for personalized advice.
🏥 Post-Surgery Considerations
If you have recently had surgery, inform your surgeon about this injection. Vitamin D is important for bone healing, but high doses should be used with caution.
🦷 Dental Procedures
No specific precautions for dental procedures. However, inform your dentist about this medicine and any other medications you are taking.
💚 Lifestyle Tips for Better Results
🏋️ Exercise Considerations
Moderate exercise is encouraged, but avoid high-impact activities if you have bone pain or weakness until your condition improves. Consult your doctor before starting any new exercise regimen.
🥗 Diet Recommendations
💼 Impact on Daily Work & Life
This injection is given in a clinical setting and usually does not affect your ability to work. However, if you experience dizziness or fatigue after the injection, avoid driving or operating heavy machinery until you feel better.
🛑 When to Stop This Medicine
This medicine is usually given as a single dose or a short series. Do not stop or repeat doses without consulting your doctor. If you experience side effects, contact your doctor immediately.
📅 Long-Term Use Effects
Long-term effects of this medicine depend on the dose and duration. A single high dose is generally safe, but repeated high doses can lead to hypercalcemia, kidney stones, and soft tissue calcification. Regular monitoring of calcium and vitamin D levels is essential. Once deficiency is corrected, maintenance with lower-dose oral supplements is usually recommended.
🌿 Non-Medicine Approaches
These can complement medicine but do not replace prescribed treatment.
For mild to moderate deficiency, oral supplements are effective and convenient.
Evidence: Well-establishedRegular safe sun exposure can help maintain vitamin D levels.
Evidence: Well-establishedFoods fortified with vitamin D can help prevent deficiency.
Evidence: Moderate💉 Vaccination Considerations
💉 If You're Getting Vaccinated
No known interactions between this medicine and vaccines. However, inform your healthcare provider about this injection before receiving any vaccine.
📦 Storage Guide
✅ DO
Store in a cool, dry place (15-30°C)
❌ DON'T
Do not freeze
✅ DO
Keep in original packaging
❌ DON'T
Do not expose to direct sunlight
✅ DO
Keep out of reach of children
❌ DON'T
Do not use after expiry date
✈️ Traveling with This Medicine
This medicine is given by a healthcare professional, so you do not need to carry it yourself. If you are traveling and need to receive this injection, carry a copy of your prescription and medical records. Ensure that the injection is administered in a sterile environment by a qualified professional. Store the injection in its original packaging, away from direct sunlight, and do not freeze. If you are traveling across time zones, follow your doctor's advice on timing. Check customs regulations for carrying prescription medications.
💰 Cost Analysis & Savings
👥 Real Patient Stories
Educational, anonymized scenarios. Individual results may vary.
💬 Questions Patients Often Ask
A: It may take several days to weeks for vitamin D levels to rise and symptoms to improve. Follow-up blood tests will confirm the response.
A: High-dose vitamin D injections are generally avoided during pregnancy unless clearly needed. Consult your doctor for personalized advice.
A: Contact your doctor to reschedule. Do not attempt to self-administer.
A: No specific food restrictions, but maintain a balanced diet and stay hydrated.
A: If you feel dizzy or unwell, avoid driving until you feel better.
🤔 Common Patient Concerns
🔄 Substitutes for kalzin 3l injection
View AllAlternative brands with exact same active ingredient:
-
nu d3 300000iu injectionZydus Cadila ₹40.00 15.3% COSTLIER
-
avcal d3 injectionArvincare Pharma ₹58.47 68.6% COSTLIER
-
arachitol 3l injectionAbbott ₹363.65 948.3% COSTLIER
Medical Note: Always consult your doctor before switching medications.
🛑 Myths vs. Facts
- Myth: Vitamin D injections are a quick fix for all bone pain.
Fact: Vitamin D injections are only for severe deficiency and should not be used for general bone pain without a confirmed diagnosis. - Myth: You can take vitamin D injections without a doctor's prescription.
Fact: This is a prescription medicine and must only be given under medical supervision due to risk of hypercalcemia. - Myth: More vitamin D is always better.
Fact: Excessive vitamin D can be toxic and cause serious health issues. Doses must be individualized.
🔄 Alternative Options
Generic Alternatives
- Cholecalciferol injection 300,000 IU
Brand Alternatives
- Kalzin 3L Injection