fragmin 2500iu injection - Dalteparin (2500IU) medicine

Fragmin 2500IU Injection (Dalteparin): Comprehensive Medicine Guide

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🏭 Pfizer Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 25, 2026
⚠️ Hepatotoxicity Risk 📋 Prescription Required 💊 Generic Available
Medically Reviewed
12 min read
Evidence: Well-established for approved indications.
Reviewed by
SaathiMed Expert Panel | Sep 25, 2026

When to Call Your Doctor IMMEDIATELY

  • Blood in stool or vomit
  • Severe abdominal pain
  • Chest pain or difficulty breathing
  • Severe headache with visual changes
  • Sudden swelling of face, lips, or throat
  • Yellowing of skin or eyes
  • Decreased urine output
  • Unusual bruising or bleeding that does not stop

If experiencing severe symptoms, call emergency services immediately.

What is fragmin 2500iu injection used for?

This medicine is a low molecular weight heparin used to prevent and treat blood clots. It is given by injection and works by inhibiting clotting factors, primarily factor Xa. It is prescribed for DVT prevention after surgery, treatment of DVT and pulmonary embolism, and during haemodialysis.

  • Generic Name: Dalteparin (2500IU)
  • Manufacturer: Pfizer Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 fragmin 2500iu injection के बारे में (Hindi Summary)

उपयोग: यह दवा एक प्रकार की रक्त पतला करने वाली दवा है जिसे डाल्टेपरिन कहा जाता है। यह इंजेक्शन के रूप में दी जाती है और खून के थक्के बनने से रोकने और उनके इलाज के लिए इस्तेमाल की जाती है। इसका उपयोग मुख्य रूप से सर्जरी के बाद पैरों की नसों में थक्का बनने से बचाने, फेफड़ों में थक्का जाने के इलाज, और डायलिसिस के दौरान खून को पतला रखने के लिए किया जाता है। यह दवा केवल डॉक्टर की सलाह और निगरानी में ही दी जानी चाहिए।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में इंजेक्शन लगाने की जगह पर दर्द, लालिमा, या सूजन, नाक से खून आना, मसूड़ों से खून आना, और आसानी से चोट लगने पर नील पड़ना शामिल है। कभी-कभी प्लेटलेट्स की संख्या कम हो सकती है। गंभीर दुष्प्रभावों में अत्यधिक रक्तस्राव, एलर्जी, और हेपरिन-प्रेरित थ्रोम्बोसाइटोपेनिया (HIT) शामिल हैं। अगर आपको असामान्य रक्तस्राव, काला मल, या सांस लेने में तकलीफ हो, तो तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: यह दवा केवल डॉक्टर की देखरेख में ही दी जानी चाहिए। बिना प्रशिक्षण के इसे स्वयं न लगाएं। अपने डॉक्टर को अन्य सभी दवाओं के बारे में बताएं, खासकर खून पतला करने वाली दवाएं, दर्द निवारक दवाएं, और एस्पिरिन। चोट लगने से बचें। अगर आपको गुर्दे या लीवर की बीमारी है, तो डॉक्टर को बताएं। नियमित रूप से खून की जांच करवाएं। दवा की खुराक खुद से न बदलें। अगर खुराक छूट जाए, तो डॉक्टर से पूछें, दोहरी खुराक न लें।

💡 Did You Know? The Indian pharmaceutical market is expected to reach $130 billion by 2030.

💊 fragmin 2500iu injection Uses & Benefits

[{"condition":"Prevention of deep vein thrombosis (DVT) in surgical patients","description":"Used before and after major surgery, especially orthopaedic procedures, to reduce the risk of clot formation in leg veins.","evidence":"Well-established"},{"condition":"Treatment of established deep vein thrombosis (DVT)","description":"Helps prevent clot extension and reduces the risk of pulmonary embolism in patients with confirmed DVT.","evidence":"Well-established"},{"condition":"Treatment of pulmonary embolism (PE)","description":"Used as an anticoagulant to prevent further clot formation and allow natural clot breakdown in patients with PE.","evidence":"Well-established"},{"condition":"Prevention of clotting during haemodialysis","description":"Administered to prevent clot formation in the dialysis circuit in patients with renal failure.","evidence":"Well-established"},{"condition":"Unstable angina and non-ST-elevation myocardial infarction (NSTEMI)","description":"May be used as part of antithrombotic therapy in acute coronary syndromes to reduce ischaemic events.","evidence":"Established in selected protocols"}]

Off-label uses: [{"condition":"Prevention of venous thromboembolism in cancer patients","description":"Sometimes used off-label for extended prophylaxis in ambulatory cancer patients receiving chemotherapy.","evidence":"Limited"},{"condition":"Anticoagulation in pregnancy with mechanical heart valves","description":"May be considered in selected cases when warfarin is contraindicated, though evidence is limited and specialist care is required.","evidence":"Limited"}]

Primary treatment for: Venous thromboembolism (prevention and treatment)

Also treats: Deep vein thrombosis, Pulmonary embolism, Acute coronary syndromes, Haemodialysis anticoagulation

📋 Drug Information

Generic Name(s)Dalteparin (2500IU)
Brand Namefragmin 2500iu injection
ManufacturerPfizer Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassBLOOD RELATED
Action ClassLow molecular weight Heparin (LMWH)
Route of AdministrationParenteral (subcutaneous injection; in some cases, intravenous administration may be used under medical supervision)
StorageStore at room temperature (15-30°C). Do not freeze. Keep in the original container and protect from light. Do not use if the solution is discoloured or contains particles.
Shelf LifeRefer to the product packaging for the expiry date. Do not use after the expiry date.
WHO GuidelineLow molecular weight heparins, including dalteparin, are recommended by various international guidelines for the prevention and treatment of venous thromboembolism. However, specific recommendations vary by clinical scenario. Consult current guidelines for detailed recommendations.
ICMR GuidelineNot established from the available information.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Always rotate injection sites to prevent bruising and skin reactions.
2
Monitor platelet counts regularly to detect heparin-induced thrombocytopenia early.
3
Adjust dose in renal impairment and consider anti-factor Xa monitoring.
4
Avoid concurrent use with NSAIDs or antiplatelet drugs unless clearly indicated.
5
Educate patients on signs of bleeding and when to seek immediate help.
6
Do not use intramuscular injections while on this medicine.
7
Ensure proper disposal of needles in a sharps container.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
Swelling and pain in one leg
This medicine is used to treat or prevent deep vein thrombosis.
Likely Use
✅
Sudden shortness of breath
This medicine is used to treat pulmonary embolism.
Likely Use
❌
Fever
This medicine is not a primary fever reducer.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionThis medicine is administered by subcutaneous injection and is rapidly and almost completely absorbed from the injection site. The bioavailability after subcutaneous administration is high, approximately 90% or more.
DistributionDalteparin distributes primarily in the plasma and extracellular fluid. It does not cross the placenta significantly and is not known to enter breast milk in clinically significant amounts.
Protein BindingDalteparin binds to antithrombin III and other plasma proteins, but its binding is not as extensive as that of unfractionated heparin. It has low affinity for platelet factor 4, which contributes to its more predictable dose response.
MetabolismDalteparin is not extensively metabolised by the liver. It undergoes limited desulphation and depolymerisation, primarily in the reticuloendothelial system and the liver.
Half-LifeThe elimination half-life of dalteparin after subcutaneous administration is approximately 3 to 5 hours, but it may be prolonged in patients with renal impairment.
ExcretionDalteparin and its metabolites are primarily excreted by the kidneys. Renal impairment can significantly prolong its elimination and increase the risk of bleeding.
BioavailabilityThe bioavailability of dalteparin after subcutaneous injection is approximately 90% or higher.
Onset of ActionThe anticoagulant effect begins within 1 to 2 hours after subcutaneous injection.
Peak Plasma TimePeak plasma anti-factor Xa activity occurs approximately 3 to 5 hours after subcutaneous administration.
Duration of ActionThe anticoagulant effect lasts for approximately 12 to 24 hours after a subcutaneous dose, depending on the dose and patient factors.

How It Works

This medicine binds to antithrombin III, a natural plasma protein, and greatly accelerates its ability to inactivate activated clotting factors, particularly factor Xa and, to a lesser extent, thrombin (factor IIa). By inhibiting these factors, it interrupts the coagulation cascade, preventing the conversion of fibrinogen to fibrin and thereby inhibiting clot formation. Its effect is more pronounced on factor Xa than on thrombin, which gives it a more predictable anticoagulant response compared with unfractionated heparin.

Mechanism Steps

1
Binding to antithrombin III: This medicine binds to antithrombin III, causing a conformational change that exposes its active site.
2
Accelerated inactivation of factor Xa: The activated antithrombin III rapidly inhibits factor Xa, a key enzyme in the coagulation cascade.
3
Inhibition of thrombin (factor IIa): To a lesser extent, this medicine also enhances the inhibition of thrombin, reducing fibrin formation.
4
Interruption of the coagulation cascade: By inhibiting factor Xa and thrombin, the conversion of fibrinogen to fibrin is blocked, preventing clot stabilisation.
5
Antithrombotic effect: The overall result is prevention of thrombus formation and extension, without directly lysing existing clots.

💡 How to Take fragmin 2500iu injection

Strength: Dalteparin 2500 IU injection (single-dose prefilled syringe or vial)

1This medicine is given by subcutaneous injection, usually in the abdominal area, by a healthcare professional or a trained caregiver.
2Wash hands thoroughly before preparing the injection.
3Clean the injection site with an alcohol swab and allow it to dry.
4Do not expel air bubbles from the prefilled syringe unless instructed.
5Insert the needle at a 90-degree angle into the skin fold.
6Inject the solution slowly and steadily.
7Remove the needle and apply gentle pressure at the site without rubbing.
8Dispose of the needle in a sharps container.
9Rotate injection sites to prevent bruising.
10Follow your doctor's instructions exactly regarding dose and timing.

Dosage Information

Adult DosageThe dose of this medicine is individualised by a qualified clinician based on the indication, patient weight, renal function, and clinical condition. For prophylaxis of deep vein thrombosis, typical doses range from 2500 IU to 5000 IU subcutaneously once daily. For treatment of established thrombosis, doses are weight-based and may be given once or twice daily. Dose must be individualised 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 have reduced renal function and are at higher risk of bleeding. Dose adjustment and close monitoring are recommended. Dose must be individualised by a qualified clinician.
Renal ImpairmentIn patients with severe renal impairment (eGFR <30 mL/min), the dose may need to be reduced or the dosing interval extended. Monitoring of anti-factor Xa activity is recommended. Dose must be individualised by a qualified clinician.
Hepatic ImpairmentNo specific dose adjustment is established for hepatic impairment, but caution is advised due to potential bleeding risk. Dose must be individualised by a qualified clinician.
Maximum Daily DoseThe maximum daily dose is individualised and depends on the indication. For treatment doses, it may be up to 180 IU/kg/day in divided doses. Always follow the prescribed dose.

Dosage Timeline

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

🍽️ Food Timing Guide

No specific food interactions
No dietary restrictions
This medicine is given by injection and its absorption is not affected by food.

⏰ 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 fragmin 2500iu injection

✅ Common Side Effects

Injection site reactions (pain, bruising, redness, swelling) (Common (up to 10%))
Apply a cold compress if needed. Rotate injection sites. Consult doctor if severe or persistent.
Mild bleeding (nosebleeds, gum bleeding, easy bruising) (Common (5-10%))
Monitor for unusual bleeding. Inform your doctor if bleeding is persistent or worsens.
Thrombocytopenia (mild, transient decrease in platelets) (Uncommon (1-5%))
Your doctor may monitor platelet counts. Report any unusual bruising or bleeding.
Elevated liver enzymes (Uncommon (1-5%))
Usually reversible. Your doctor may monitor liver function tests.

🚨 Serious Side Effects

Major bleeding (gastrointestinal, intracranial, retroperitoneal) (Rare (<0.1%))
Seek immediate medical attention if you notice black stools, vomiting blood, severe headache, or unexplained bruising.
Heparin-induced thrombocytopenia (HIT) with thrombosis (Rare (<0.1%))
Report any new blood clots, swelling, or pain in limbs. Requires immediate medical evaluation and alternative anticoagulation.
Severe allergic reactions (anaphylaxis) (Rare (<0.1%))
Seek emergency care if you experience swelling of face, lips, throat, difficulty breathing, or rash.
Skin necrosis at injection site (Very rare (<0.01%))
Discontinue and seek immediate medical attention if skin turns dark or painful.

⚠️ Rare Side Effects

Osteoporosis with long-term use
Long-term use should be monitored; ensure adequate calcium and vitamin D intake.
Hair loss
Usually reversible after stopping treatment. Discuss with your doctor if concerned.
Hyperkalaemia
Monitor potassium levels, especially in patients with renal impairment or diabetes.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Warfarin Major
Aspirin Major
Clopidogrel Major
Ibuprofen Major
Rivaroxaban Major
Alteplase Moderate
Corticosteroids Moderate
Dextran Moderate
Paracetamol Minor
Antihistamines Minor

🚨 Major Interactions

  • Warfarin
  • Direct oral anticoagulants (e.g., rivaroxaban, apixaban)
  • Antiplatelet agents (e.g., aspirin, clopidogrel)
  • NSAIDs (e.g., ibuprofen, diclofenac)

⚡ Moderate Interactions

  • Thrombolytic agents (e.g., alteplase)
  • Corticosteroids
  • Dextran

🍷 Alcohol Interaction

Alcohol may increase the risk of gastrointestinal bleeding and should be avoided or limited while receiving this medicine. Patients should discuss alcohol intake with their doctor.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Active major bleeding","History of heparin-induced thrombocytopenia (HIT)","Known hypersensitivity to dalteparin or other low molecular weight heparins","Severe renal impairment (eGFR

⚠️ Warnings & Precautions

["This medicine can cause serious bleeding. Use with caution in patients with bleeding disorders, uncontrolled hypertension, or recent surgery.","Monitor platelet counts regularly, especially during the first few weeks of therapy, to detect HIT.","Use with caution in patients with renal impairment; dose reduction may be necessary.","Avoid intramuscular injections and other invasive procedures while on this medicine.","Inform your doctor if you are pregnant, planning pregnancy, or breastfeeding.","Do not use this medicine interchangeably with other low molecular weight heparins without medical advice.","Elderly patients may be more sensitive to the anticoagulant effect and are at higher risk of bleeding."]

🤱 Lactation Safety

Dalteparin is not known to pass into breast milk in clinically significant amounts and is generally considered compatible with breastfeeding. Consult your doctor for individual advice.

💊 Overdose Management

Overdose of this medicine can cause severe bleeding. There is no specific antidote, but protamine sulfate can partially neutralise the anticoagulant effect. Management is supportive and may include blood transfusion or fresh frozen plasma. Seek immediate medical attention if overdose is suspected.

⏰ Missed Dose

If you miss a dose of this medicine, contact your doctor or nurse for instructions. Do not double the dose to make up for a missed one. The dosing schedule should be individualised by your healthcare provider.

Additional Safety Advice

General Safety

This medicine must only be given under medical supervision. Do not self-administer unless you have been trained and instructed by your doctor. Inform your healthcare team about all other medicines you take, especially blood thinners, antiplatelet drugs, and NSAIDs, as these can increase bleeding risk. Avoid activities that may cause injury. Tell your doctor if you have kidney disease, liver disease, uncontrolled high blood pressure, or a history of bleeding disorders. Do not stop or change the dose without consulting your doctor. Regular blood tests may be needed to monitor platelets and kidney function. If you miss a dose, follow your doctor's instructions; do not double the dose. Store this medicine as directed and never use it if the solution is discoloured or contains particles.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients are at higher risk of bleeding and may have reduced renal function. Dose adjustment and close monitoring are recommended. Falls prevention and regular review of medications are important.

🤰 Pregnancy Planning (TTC)

This medicine is considered safe for use in pregnancy when clinically indicated, as it does not cross the placenta. If you are planning pregnancy, consult your doctor to discuss the safest anticoagulation strategy.

🏥 Post-Surgery Considerations

This medicine is often used after surgery to prevent DVT. Follow your surgeon's instructions regarding duration and monitoring. Report any signs of bleeding or clot formation immediately.

🦷 Dental Procedures

Inform your dentist that you are on this medicine before any dental procedure. You may need to adjust the timing of your dose to reduce bleeding risk. Consult your doctor for specific advice.

💚 Lifestyle Tips for Better Results

🏃
Stay active with gentle exercises to promote circulation.
🥗
Avoid contact sports or activities with high risk of injury.
😴
Maintain a healthy weight to reduce strain on veins.
💧
Stay well hydrated to support kidney function.
🧘
Avoid smoking as it increases clot risk.
🌞
Follow a balanced diet rich in fruits and vegetables.

🏋️ Exercise Considerations

Avoid activities that may cause bruising or bleeding, such as contact sports or heavy lifting. Gentle walking and stretching are encouraged to promote circulation. Consult your doctor before starting any new exercise regimen.

🥗 Diet Recommendations

Include omega-3 rich foods like fish
Reduce processed food intake
Stay well hydrated
Limit alcohol consumption
Maintain adequate calcium and vitamin D intake for bone health

💼 Impact on Daily Work & Life

This medicine may cause dizziness or fatigue in some patients. Avoid driving or operating heavy machinery if you feel unwell. Most patients can continue their usual activities with caution to avoid injury.

🛑 When to Stop This Medicine

Do not stop this medicine without consulting your doctor. Stopping suddenly may increase the risk of clot formation. Your doctor will determine the appropriate duration of therapy based on your condition.

📅 Long-Term Use Effects

Long-term use of this medicine may increase the risk of osteoporosis and bleeding. Regular monitoring of platelet counts, renal function, and signs of bleeding is recommended. Prolonged use should be periodically reviewed by your doctor to assess the need for continued therapy.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Compression stockings

Can help prevent DVT in patients who cannot use anticoagulants.

Evidence: Well-established
Early mobilisation after surgery

Reduces the risk of clot formation.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

No specific vaccine interactions are established. However, intramuscular injections should be avoided while on this medicine due to bleeding risk. Discuss with your doctor before receiving any vaccine.

📦 Storage Guide

✅ DO

Store at room temperature (15-30°C)

❌ DON'T

Do not freeze

✅ 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

When travelling with this medicine, carry it in its original packaging with the prescription label. Bring a copy of your prescription and a doctor&#039;s letter explaining the need for injections. Keep the medicine in your carry-on luggage to avoid temperature extremes. If crossing time zones, consult your doctor about adjusting the dosing schedule. Store at room temperature and avoid freezing. Declare the medication at customs if required.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 65-year-old man undergoing knee replacement surgery
He was prescribed this medicine after surgery to prevent blood clots. He received daily injections for 10 days and was monitored for bleeding. He experienced mild bruising at the injection sites but no serious complications. He was advised to stay active and hydrated.
💡 Lesson: Adherence to prescribed prophylaxis and monitoring for bleeding are key to safe recovery.
👤 A 45-year-old woman with a history of DVT during pregnancy
She was started on this medicine during her second trimester to prevent recurrent clots. She received regular monitoring and delivered a healthy baby. She was switched to oral anticoagulants after delivery.
💡 Lesson: This medicine is considered safe in pregnancy under specialist care and requires regular monitoring.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: This medicine starts working within 1 to 2 hours after injection, with peak effect in 3 to 5 hours.

Q: Can I take this medicine at home?

A: Yes, if your doctor trains you or a caregiver to give subcutaneous injections safely.

Q: What should I avoid while on this medicine?

A: Avoid activities that may cause injury, and avoid NSAIDs and other blood thinners unless prescribed.

🤔 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 fragmin 2500iu injection

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 orally.
    Fact: This medicine is given by injection only; it is not effective orally.
  • Myth: This medicine dissolves existing blood clots.
    Fact: This medicine prevents new clots from forming and existing clots from growing, but it does not dissolve them.
  • Myth: This medicine is safe for everyone.
    Fact: This medicine is contraindicated in certain conditions such as active bleeding and history of heparin-induced thrombocytopenia.

🔄 Alternative Options

Generic Alternatives

  • Dalteparin sodium

Brand Alternatives

  • Fragmin 2500 IU injection

📊 Comparison with Similar Medicines

[{"medicine":"Dalteparin","class":"Low molecular weight heparin","route":"Subcutaneous","monitoring":"Anti-factor Xa (selected patients)","half_life":"3-5 hours"},{"medicine":"Enoxaparin","class":"Low molecular weight heparin","route":"Subcutaneous","monitoring":"Anti-factor Xa (selected patients)","half_life":"4.5 hours"},{"medicine":"Unfractionated heparin","class":"Heparin","route":"Intravenous/Subcutaneous","monitoring":"aPTT","half_life":"1-2 hours"}]

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