Isofer Injection: Complete Guide to Uses, Side Effects, 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
- Difficulty breathing or wheezing
- Swelling of the face, lips, or throat
- Chest pain or tightness
- Severe dizziness or fainting
- Rapid or irregular heartbeat
- Severe rash or hives
- Sudden drop in blood pressure
If experiencing severe symptoms, call emergency services immediately.
What is isofer injection used for?
This medicine is an intravenous iron replacement used to treat iron deficiency anaemia when oral iron is not effective or tolerated. It is given by a healthcare professional and works by replenishing iron stores to support red blood cell production.
- Generic Name: Iron Isomaltoside (100mg/ml)
- Manufacturer: Lupin Ltd
- Form: Allopathy
- Pregnancy Category: Consult doctor
- Prescription Required: Yes
🇮🇳 isofer injection के बारे में (Hindi Summary)
उपयोग: यह दवा आयरन की कमी से होने वाले एनीमिया के इलाज के लिए दी जाती है, खासकर जब मुँह से ली जाने वाली आयरन गोलियाँ काम नहीं करतीं या बर्दाश्त नहीं होतीं। यह शरीर में आयरन की भरपाई करती है और लाल रक्त कोशिकाओं के निर्माण में मदद करती है। यह केवल डॉक्टर या नर्स द्वारा नस के माध्यम से दी जाती है।
साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में सिरदर्द, चक्कर आना, जी मिचलाना, उल्टी, दस्त, कब्ज, त्वचा पर दाने, खुजली और इंजेक्शन लगाने की जगह पर दर्द या सूजन शामिल हैं। गंभीर दुष्प्रभाव दुर्लभ हैं, लेकिन एलर्जी की प्रतिक्रिया, साँस लेने में कठिनाई, चेहरे या गले में सूजन, और ब्लड प्रेशर में गिरावट हो सकती है। किसी भी असामान्य लक्षण पर तुरंत डॉक्टर को बताएं।
सुरक्षा सलाह: यह दवा केवल अस्पताल या क्लिनिक में डॉक्टर या नर्स द्वारा दी जानी चाहिए। इससे पहले कि आपको यह इंजेक्शन दिया जाए, अपनी सभी एलर्जी और बीमारियों के बारे में डॉक्टर को बताएं। इंजेक्शन के दौरान और बाद में आपकी निगरानी की जाएगी। अगर आपको चक्कर, दाने, या साँस लेने में तकलीफ हो, तो तुरंत बताएं। गर्भवती महिलाएं इस दवा का उपयोग केवल डॉक्टर की सलाह पर करें।
💊 isofer injection Uses & Benefits
[{"condition":"Iron deficiency anaemia","description":"Used to treat iron deficiency anaemia when oral iron is ineffective, not tolerated, or contraindicated, such as in chronic kidney disease, inflammatory bowel disease, or heavy menstrual bleeding.","evidence":"Well-established"},{"condition":"Iron deficiency in chronic kidney disease","description":"Helps maintain iron stores and supports erythropoiesis-stimulating agent therapy in dialysis and non-dialysis patients.","evidence":"Well-established"},{"condition":"Perioperative iron deficiency anaemia","description":"May be used before surgery to correct iron deficiency and reduce the need for blood transfusions.","evidence":"Established"},{"condition":"Iron deficiency in inflammatory bowel disease","description":"Provides iron replacement when oral iron is poorly tolerated or ineffective due to gastrointestinal inflammation.","evidence":"Established"}]
Off-label uses: [{"condition":"Restless legs syndrome with iron deficiency","description":"Sometimes prescribed off-label for patients with restless legs syndrome and low ferritin levels, but evidence is limited.","evidence":"Limited"},{"condition":"Post-bariatric surgery iron deficiency","description":"May be used off-label when oral iron absorption is impaired after bariatric surgery.","evidence":"Limited"}]
Primary treatment for: Iron deficiency anaemia
Also treats: Chronic kidney disease, Inflammatory bowel disease, Heavy menstrual bleeding, Perioperative anaemia
📋 Drug Information
| Generic Name(s) | Iron Isomaltoside (100mg/ml) |
| Brand Name | isofer injection |
| Manufacturer | Lupin Ltd |
| Packaging / Form | Varies by brand (Allopathy) |
| Therapeutic Class | GYNAECOLOGICAL |
| Action Class | Haemopoetic agents |
| Route of Administration | Parenteral (intravenous infusion or injection) |
| Storage | Store at room temperature between 15°C and 30°C. Do not freeze. Keep the vial in the original carton to protect from light. Do not use if the solution is discoloured or contains particulate matter. |
| Shelf Life | The shelf life is typically 24 to 36 months from the date of manufacture, depending on the specific product. Refer to the packaging for the exact expiry date. |
| 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 works by delivering iron isomaltoside, a stable iron-carbohydrate complex, directly into the bloodstream. The complex is taken up by macrophages in the reticuloendothelial system, where iron is released from the carbohydrate carrier and either stored as ferritin or transported by transferrin to the bone marrow for haemoglobin synthesis. This process replenishes iron stores and supports the production of healthy red blood cells, correcting anaemia over time.
Mechanism Steps
💡 How to Take isofer injection
Strength: Injection: 100 mg/mL iron isomaltoside
Dosage Information
| Adult Dosage | The dose of this medicine is individualised by a qualified clinician based on the patient's iron deficit, body weight, and clinical condition. A common approach is to calculate the total iron requirement using the Ganzoni formula or similar, and administer as a single intravenous infusion or in divided doses. Doses may range from 500 mg to 1000 mg per infusion, not exceeding 20 mg/kg of body weight. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function. |
| Pediatric Dosage | Pediatric dosing is not established from available information. Consult a pediatrician. |
| Elderly Dosage | Elderly patients may be more susceptible to adverse effects and should be monitored closely. Dose adjustments are not typically required based on age alone, but individualised dosing based on renal and hepatic function is advised. |
| Renal Impairment | No specific dose adjustment is required for renal impairment, but this medicine should be used with caution in patients with severe renal impairment. Monitor renal function and iron status closely. |
| Hepatic Impairment | No specific dose adjustment is required for hepatic impairment, but this medicine should be used with caution in patients with severe liver disease. Monitor liver function and iron status. |
| Maximum Daily Dose | The maximum single dose should not exceed 20 mg/kg of body weight. The maximum cumulative dose depends on the patient's iron deficit and should be determined by a clinician. |
Dosage Timeline
🍽️ Food Timing Guide
⏰ What to Do If You Miss a Dose
⚠️ Side Effects of isofer injection
✅ Common Side Effects
🚨 Serious Side Effects
⚠️ Rare Side Effects
Consult your doctor if you experience any unusual symptoms.
🔬 Drug Interactions
| Drug | Severity | Effect |
|---|---|---|
| Oral iron supplements | Major | |
| Dimercaprol | Major | |
| Antacids | Moderate | |
| Tetracycline antibiotics | Moderate | |
| Vitamin C | Minor | |
| Tea, coffee, dairy | Minor |
🚨 Major Interactions
- Oral iron supplements
- Dimercaprol
⚡ Moderate Interactions
- Antacids (e.g., aluminium hydroxide, magnesium hydroxide)
- Tetracycline antibiotics
🍷 Alcohol Interaction
Alcohol does not directly interact with this medicine, but excessive alcohol consumption can worsen anaemia and liver health. It is advisable to limit alcohol intake while being treated for iron deficiency anaemia.
🔎 Check Your Other Medicines
Educational tool. Always confirm with your doctor or pharmacist.
🛡️ Safety & Warnings
🚫 Contraindications
["Known hypersensitivity to iron isomaltoside or any component of the formulation","Iron overload or haemochromatosis","Anaemia not caused by iron deficiency","Active severe infection or inflammation","First trimester of pregnancy (unless clearly necessary)"]
⚠️ Warnings & Precautions
["This medicine must be administered by a healthcare professional in a setting with resuscitation facilities.","Patients should be observed for at least 30 minutes after administration for signs of allergic reactions.","Use with caution in patients with a history of asthma, eczema, or other allergies.","Avoid in patients with active infections as iron may exacerbate bacterial growth.","Monitor iron status to avoid iron overload, especially with repeated dosing.","Use with caution in patients with liver or kidney impairment.","Do not use if the solution contains particles or is discoloured."]
🤱 Lactation Safety
It is not known whether iron isomaltoside is excreted in human breast milk. However, iron is a normal component of breast milk, and this medicine is unlikely to pose a risk to a nursing infant when used as directed. Consult your doctor before receiving this medicine while breastfeeding.
💊 Overdose Management
Overdose of this medicine can lead to iron overload, which may cause nausea, vomiting, abdominal pain, shock, and liver damage. Treatment is supportive and may include chelation therapy with deferoxamine. Seek immediate medical attention if overdose is suspected.
⏰ Missed Dose
This medicine is given by a healthcare professional, so missed doses are unlikely. If you miss a scheduled appointment for your injection, contact your doctor to reschedule as soon as possible. Do not attempt to self-administer this medicine.
Additional Safety Advice
This medicine must only be given by a qualified healthcare professional in a facility with resuscitation equipment. Inform your doctor about all allergies, especially to iron products, and any history of asthma, eczema, or other allergic conditions. Do not receive this medicine if you have iron overload, anaemia not caused by iron deficiency, or an active infection. Your doctor will monitor your blood pressure, heart rate, and iron levels before and after administration. Avoid taking oral iron supplements within 48 hours of this injection unless instructed otherwise. Report any dizziness, rash, or breathing difficulty immediately. Pregnant women should use this medicine only if clearly needed and under strict medical supervision. Keep all follow-up appointments for blood tests to check your response and iron levels.
👴 Special Considerations for Elderly
💡 For Patients Above 65
Elderly patients may be more prone to dizziness and falls after the infusion. Monitor blood pressure closely. Dose adjustments are not usually needed based on age alone, but individualised dosing based on renal and hepatic function is advised.
🤰 Pregnancy Planning (TTC)
If you are planning pregnancy and have iron deficiency anaemia, consult your doctor. This medicine may be used during pregnancy if oral iron is not sufficient, but only under medical supervision. Ensure your iron levels are optimised before conception.
🏥 Post-Surgery Considerations
This medicine may be used after surgery to correct iron deficiency anaemia and reduce the need for blood transfusions. It is usually given when the patient is stable and can be monitored appropriately.
🦷 Dental Procedures
There are no specific restrictions for dental procedures while receiving this medicine. However, inform your dentist about your treatment and any medications you are taking.
💚 Lifestyle Tips for Better Results
🏋️ Exercise Considerations
You may feel tired or dizzy after receiving this medicine. Avoid strenuous exercise or heavy lifting for the rest of the day. Light activity is fine if you feel well. Consult your doctor before resuming intense workouts.
🥗 Diet Recommendations
💼 Impact on Daily Work & Life
You may feel dizzy or tired after the infusion, so it is best to avoid driving or operating heavy machinery for a few hours. Most people can resume normal activities the next day. Plan your infusion on a day when you can rest afterward.
🛑 When to Stop This Medicine
Do not stop this medicine without consulting your doctor. The decision to stop is based on your haemoglobin and iron levels. If you experience severe side effects, your doctor may switch to a different treatment.
📅 Long-Term Use Effects
Long-term use of this medicine may lead to iron overload if doses are not carefully monitored. Regular blood tests to check ferritin and transferrin saturation are essential. Iron overload can cause liver damage, heart problems, and skin discolouration. With appropriate monitoring, long-term use is generally safe for patients with chronic iron deficiency.
🌿 Non-Medicine Approaches
These can complement medicine but do not replace prescribed treatment.
First-line treatment for iron deficiency anaemia if tolerated and effective.
Evidence: Well-establishedIncreasing dietary iron intake can help mild deficiency but is often insufficient for moderate to severe anaemia.
Evidence: EstablishedReserved for severe, symptomatic anaemia when rapid correction is needed.
Evidence: Well-established💉 Vaccination Considerations
💉 If You're Getting Vaccinated
There are no known interactions between this medicine and vaccines. However, if you have an active infection, your doctor may postpone the infusion until you recover.
📦 Storage Guide
✅ DO
Store at room temperature (15-30°C)
❌ DON'T
Do not freeze
✅ DO
Keep in original carton to protect from light
❌ DON'T
Do not use if solution is discoloured or contains particles
✅ DO
Keep out of reach of children
❌ DON'T
Do not store in bathroom
✈️ Traveling with This Medicine
This medicine is given in a healthcare setting, so travel advice is limited. If you are travelling and need to receive this medicine, carry a copy of your prescription and medical records. Ensure the clinic or hospital where you plan to receive it has the necessary facilities. Store the medicine at room temperature and protect it from light. Check customs regulations if carrying the medicine across borders.
💰 Cost Analysis & Savings
👥 Real Patient Stories
Educational, anonymized scenarios. Individual results may vary.
💬 Questions Patients Often Ask
A: Haemoglobin levels typically start to rise within 1 to 2 weeks after the infusion, with maximum effect after 3 to 4 weeks.
A: No, this medicine must be given in a healthcare setting with proper monitoring and emergency equipment.
A: Common side effects include headache, dizziness, nausea, and injection site reactions. These are usually mild and temporary.
A: It should be used during pregnancy only if clearly needed and under medical supervision. Your doctor will weigh the benefits and risks.
🤔 Common Patient Concerns
🔄 Substitutes for isofer injection
View AllAlternative brands with exact same active ingredient:
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rapifer 100mg injectionCorona Remedies Pvt Ltd ₹2,860.00 17.2% CHEAPER
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fesomalt solution for injectionHospimax Healthcare Pvt Ltd ₹2,905.31 15.8% CHEAPER
-
irohigh injectionRPG Life Sciences Ltd ₹3,187.50 7.7% CHEAPER
-
ferisome-iv injectionMicro Labs Ltd ₹3,281.25 5% CHEAPER
-
jilazo solution for injectionLupin Ltd ₹3,452.00 SAME PRICE
Medical Note: Always consult your doctor before switching medications.
🛑 Myths vs. Facts
- Myth: This medicine can be self-administered at home.
Fact: This medicine must be given by a healthcare professional in a medical setting due to the risk of allergic reactions. - Myth: This medicine works immediately.
Fact: It takes 1 to 2 weeks for haemoglobin levels to start rising, with maximum effect after 3 to 4 weeks. - Myth: This medicine is safe for everyone with anaemia.
Fact: It is only for iron deficiency anaemia and is contraindicated in iron overload or non-iron deficiency anaemias.
🔄 Alternative Options
Generic Alternatives
- Iron isomaltoside 100 mg/mL injection
Brand Alternatives
- Monofer
- Monoferric