Heparin Sod 10,000u/ml Inj, 1ml

Manufacturer MEITHEAL PHARMACEUTICALS Active Ingredient Heparin(HEP a rin) Pronunciation HEP-uh-rin
It is used to thin the blood so that clots will not form.It is used to treat blood clots. It is used to keep blood from clotting in catheters. It may be given to you for other reasons. Talk with the doctor.
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Drug Class
Anticoagulant
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Pharmacologic Class
Antithrombotic; Indirect Thrombin Inhibitor
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Pregnancy Category
Category C
FDA Approved
Jun 1939
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DEA Schedule
Not Controlled

Overview

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What is this medicine?

Heparin is a medicine that helps prevent blood clots from forming or growing larger in your blood vessels. It works by thinning your blood. It is given by injection, either into a vein or under the skin.
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How to Use This Medicine

Taking Your Medication Correctly
To ensure safe and effective use, take this medication exactly as directed by your doctor. Carefully read all the information provided to you and follow the instructions closely. This medication can be administered in various ways, including:
- through a catheter
- as an injection into a vein
- as an injection into the fatty part of the skin
- as an infusion into a vein over a period of time
If you have any questions or concerns, discuss them with your doctor.

Storing and Disposing of Your Medication
If you need to store this medication at home, consult with your doctor, nurse, or pharmacist for guidance on proper storage.

Missing a Dose
If you miss a dose, contact your doctor for advice on what to do next.
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Lifestyle & Tips

  • Avoid activities that could lead to injury or bleeding (e.g., contact sports, sharp objects).
  • Use a soft toothbrush and an electric razor to minimize bleeding risk.
  • Report any signs of unusual bleeding or bruising to your doctor immediately.
  • Inform all healthcare providers (including dentists) that you are taking heparin.

Dosing & Administration

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Adult Dosing

Standard Dose: Varies significantly by indication and route. For DVT/PE treatment: Initial IV bolus of 80 units/kg, followed by a continuous IV infusion of 18 units/kg/hour. For DVT prophylaxis: 5,000 units subcutaneously every 8 to 12 hours.
Dose Range: 5000 - 40000 mg

Condition-Specific Dosing:

DVT/PE Treatment (IV Infusion): Initial bolus 80 units/kg, then 18 units/kg/hr. Adjust infusion rate to maintain aPTT 1.5-2.5 times control.
DVT Prophylaxis (SC): 5,000 units subcutaneously every 8 to 12 hours.
Acute Coronary Syndromes (IV): Initial bolus 60 units/kg (max 4000 units), then 12 units/kg/hr (max 1000 units/hr). Adjust to maintain aPTT 1.5-2.0 times control.
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Pediatric Dosing

Neonatal: Initial IV bolus of 75 units/kg, followed by a continuous IV infusion of 28 units/kg/hour. Adjust to maintain aPTT 60-85 seconds.
Infant: Initial IV bolus of 75 units/kg, followed by a continuous IV infusion of 20 units/kg/hour. Adjust to maintain aPTT 60-85 seconds.
Child: Initial IV bolus of 75 units/kg, followed by a continuous IV infusion of 20 units/kg/hour. Adjust to maintain aPTT 60-85 seconds.
Adolescent: Similar to adult dosing, adjusted by weight and clinical indication. Initial IV bolus of 75 units/kg, followed by a continuous IV infusion of 20 units/kg/hour. Adjust to maintain aPTT 60-85 seconds.
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Dose Adjustments

Renal Impairment:

Mild: No specific dose adjustment typically required, but monitor closely for bleeding.
Moderate: No specific dose adjustment typically required, but monitor closely for bleeding and consider lower initial doses or slower titration.
Severe: No specific dose adjustment typically required, but monitor closely for bleeding and consider lower initial doses or slower titration due to potential accumulation of smaller fragments.
Dialysis: Heparin is not significantly removed by hemodialysis. No specific dose adjustment for systemic anticoagulation, but monitor closely. Used for anticoagulation during dialysis procedures.

Hepatic Impairment:

Mild: No specific dose adjustment typically required, but monitor closely for bleeding.
Moderate: No specific dose adjustment typically required, but monitor closely for bleeding due to potential altered metabolism and coagulation factor synthesis.
Severe: No specific dose adjustment typically required, but monitor closely for bleeding due to potential altered metabolism and coagulation factor synthesis. Increased risk of bleeding.

Pharmacology

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Mechanism of Action

Heparin binds to antithrombin III (ATIII), a plasma protein that inactivates thrombin (Factor IIa) and Factor Xa. This binding causes a conformational change in ATIII, greatly accelerating its inhibitory action (by 1000-fold or more) on these coagulation factors. Heparin also inhibits other activated clotting factors, including IXa, XIa, XIIa, and plasmin, but its primary anticoagulant effect is mediated through ATIII's inhibition of thrombin and Factor Xa.
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Pharmacokinetics

Absorption:

Bioavailability: Not absorbed orally. IV: 100%. SC: Approximately 30% (highly variable).
Tmax: IV: Immediate. SC: 2-4 hours.
FoodEffect: Not applicable (parenteral administration).

Distribution:

Vd: 0.07 L/kg (low, primarily confined to plasma volume).
ProteinBinding: High (variable, non-specific binding to plasma proteins, endothelial cells, and macrophages, which can lead to dose-dependent clearance).
CnssPenetration: No

Elimination:

HalfLife: Dose-dependent: Approximately 1-2.5 hours (e.g., 1.5 hours for 100 U/kg, 2.5 hours for 400 U/kg).
Clearance: Saturable, dose-dependent clearance primarily by the reticuloendothelial system and renal excretion of metabolites.
ExcretionRoute: Renal (metabolites), negligible unchanged drug.
Unchanged: Less than 5%
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Pharmacodynamics

OnsetOfAction: IV: Immediate. SC: 20-60 minutes.
PeakEffect: IV: Within minutes. SC: 2-4 hours.
DurationOfAction: Dose-dependent. IV: 2-6 hours. SC: 8-12 hours.

Safety & Warnings

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BLACK BOX WARNING

Spinal/Epidural Hematomas: Epidural or spinal hematomas may occur in patients anticoagulated with heparin or low molecular weight heparins (LMWH) who are receiving neuraxial anesthesia or undergoing spinal puncture. These hematomas may result in long-term or permanent paralysis. The risk is increased by use of indwelling epidural catheters, concomitant use of other drugs affecting hemostasis (e.g., NSAIDs, antiplatelet agents, other anticoagulants), and by traumatic or repeated epidural or spinal puncture. Monitor patients frequently for signs and symptoms of neurological impairment. If neurological compromise is noted, urgent treatment is necessary.
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Side Effects

Serious Side Effects: Seek Medical Help Right Away

Although rare, some people may experience severe and potentially life-threatening side effects while taking this medication. If you notice any of the following symptoms, contact your doctor immediately or seek medical attention:

Signs of an allergic reaction, such as:
+ Rash
+ Hives
+ Itching
+ Red, swollen, blistered, or peeling skin with or without fever
+ Wheezing
+ Tightness in the chest or throat
+ Trouble breathing, swallowing, or talking
+ Unusual hoarseness
+ Swelling of the mouth, face, lips, tongue, or throat
Signs of bleeding, including:
+ Vomiting or coughing up blood
+ Vomit that resembles coffee grounds
+ Blood in the urine
+ Black, red, or tarry stools
+ Bleeding from the gums
+ Abnormal vaginal bleeding
+ Unexplained bruises or bruises that increase in size
+ Uncontrollable bleeding
Neurological symptoms, such as:
+ Weakness on one side of the body
+ Difficulty speaking or thinking
+ Changes in balance
+ Drooping on one side of the face
+ Blurred vision
Confusion
Severe headache
Dizziness or fainting
Upset stomach or vomiting
Unusual burning sensations, particularly on the soles of the feet
Swelling, warmth, numbness, color changes, or pain in a leg or arm
Chest pain or pressure
Shortness of breath
Back pain
Groin or pelvic pain or swelling
Changes in skin color at the injection site
Skin breakdown at the site of administration
Fever or chills

Other Possible Side Effects

Like all medications, this drug can cause side effects. However, many people experience no side effects or only mild ones. If you have any side effects that bother you or persist, contact your doctor for advice.

Please note that this list is not exhaustive, and you may experience other side effects not mentioned here. If you have questions or concerns about side effects, consult your doctor. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.
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Seek Immediate Medical Attention If You Experience:

  • Any unusual bleeding (e.g., nosebleeds, bleeding gums, blood in urine or stools, heavy menstrual bleeding)
  • Excessive bruising or large bruises that appear without injury
  • Severe headache or sudden weakness/numbness (could indicate internal bleeding)
  • Red or dark brown urine
  • Black, tarry stools or bright red blood in stools
  • Severe stomach pain
  • Sudden shortness of breath or chest pain (could indicate new clot or bleeding)
  • Any new or worsening pain, swelling, or discoloration in a limb (could indicate a new clot or HIT)
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Before Using This Medicine

Before Taking This Medication: Important Information to Share with Your Doctor

It is essential to inform your doctor about the following:

Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Be sure to describe the symptoms you experienced.
If you are allergic to pork products, discuss this with your doctor.
* Certain health conditions, including:
+ Bleeding problems
+ Low platelet count
+ A history of low platelet count caused by heparin or pentosan polysulfate

This list is not exhaustive, and it is crucial to disclose all your medications (prescription, over-the-counter, natural products, and vitamins) and health issues to your doctor and pharmacist. They will help determine if it is safe to take this medication with your existing health conditions and other drugs. Never start, stop, or adjust the dosage of any medication without consulting your doctor first.
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Precautions & Cautions

Important Warnings and Cautions

It is essential to inform all your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are taking this medication.

Bleeding Risks
You may experience easier bleeding, so it is crucial to be cautious and avoid injuries. To minimize bleeding risks, use a soft toothbrush and an electric razor. Severe and potentially life-threatening bleeding problems have been associated with this medication.

Heparin-Induced Thrombocytopenia (HIT) and Thrombosis (HITTS)
This medication can cause a condition called heparin-induced thrombocytopenia (HIT), which may lead to blood clots, known as heparin-induced thrombocytopenia and thrombosis (HITTS). These conditions can be life-threatening or cause other complications, and may occur up to several weeks after stopping the medication. If you have any questions or concerns, discuss them with your doctor. Regular blood tests, as directed by your doctor, are necessary to monitor your condition.

Lab Test Interactions
This medication may affect certain laboratory test results. Inform all your healthcare providers and laboratory personnel that you are taking this medication.

Injury and Head Trauma
If you fall, injure yourself, or hit your head, contact your doctor immediately, even if you feel fine.

Product Verification
Ensure you have the correct product, as this medication comes in various containers and strengths. If you have any questions, consult your doctor or pharmacist.

Sulfite Allergy
If you are allergic to sulfites, discuss this with your doctor, as some products may contain sulfites.

Age-Related Precautions
If you are over 60 years old, use this medication with caution, as you may be more susceptible to side effects.

Benzyl Alcohol Precautions
Some products contain benzyl alcohol, which can cause serious side effects in newborns and infants, especially when combined with other medications containing benzyl alcohol. Consult your doctor to determine if this product contains benzyl alcohol and to discuss potential risks.

Pregnancy and Breastfeeding
If you are pregnant, plan to become pregnant, or are breastfeeding, inform your doctor to discuss the benefits and risks of this medication to you and your baby.
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Overdose Information

Overdose Symptoms:

  • Excessive bleeding (e.g., epistaxis, hematuria, melena, ecchymoses, hematomas)
  • Hypotension
  • Tachycardia
  • Signs of shock

What to Do:

Immediately discontinue heparin. The effects of heparin can be rapidly neutralized by intravenous administration of protamine sulfate. The dose of protamine sulfate depends on the amount of heparin to be neutralized and the time since heparin administration. Call 1-800-222-1222 (Poison Control) or seek immediate medical attention.

Drug Interactions

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Contraindicated Interactions

  • History of Heparin-Induced Thrombocytopenia (HIT)
  • Active major bleeding
  • Severe thrombocytopenia
  • Uncontrolled hypertension
  • Recent brain, spinal, or eye surgery
  • Bacterial endocarditis
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Major Interactions

  • Other anticoagulants (e.g., warfarin, dabigatran, rivaroxaban, apixaban, edoxaban) - increased risk of bleeding
  • Antiplatelet agents (e.g., aspirin, clopidogrel, prasugrel, ticagrelor) - increased risk of bleeding
  • NSAIDs (e.g., ibuprofen, naproxen, celecoxib) - increased risk of bleeding
  • Thrombolytic agents (e.g., alteplase, tenecteplase) - greatly increased risk of bleeding
  • Dextran - increased risk of bleeding
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Moderate Interactions

  • Certain antibiotics (e.g., penicillins, cephalosporins) - may affect platelet function or gut flora, potentially increasing bleeding risk
  • Nitroglycerin (IV) - may decrease heparin effect (monitor aPTT)
  • Herbal supplements (e.g., ginkgo biloba, garlic, ginger, dong quai) - may increase bleeding risk
  • SSRIs/SNRIs - may increase bleeding risk
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Minor Interactions

  • Not available

Monitoring

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Baseline Monitoring

Complete Blood Count (CBC) with Platelets

Rationale: To establish baseline platelet count and assess for anemia or other hematologic abnormalities before initiating therapy. Essential for monitoring for Heparin-Induced Thrombocytopenia (HIT).

Timing: Prior to initiation of therapy.

Activated Partial Thromboplastin Time (aPTT)

Rationale: To establish baseline coagulation status and for subsequent therapeutic monitoring of heparin's anticoagulant effect.

Timing: Prior to initiation of therapy.

Prothrombin Time (PT) / International Normalized Ratio (INR)

Rationale: To establish baseline coagulation status and rule out pre-existing coagulopathy.

Timing: Prior to initiation of therapy.

Renal and Hepatic Function Tests (e.g., SCr, BUN, LFTs)

Rationale: To assess organ function that may influence drug clearance or bleeding risk.

Timing: Prior to initiation of therapy.

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Routine Monitoring

Activated Partial Thromboplastin Time (aPTT)

Frequency: Every 4-6 hours after initiation or dose change until therapeutic range is achieved, then at least daily for continuous IV infusion. For SC prophylaxis, not routinely monitored.

Target: Typically 1.5-2.5 times the control value (or specific target range based on anti-Xa levels, e.g., 60-85 seconds), depending on the assay and clinical indication.

Action Threshold: Adjust infusion rate based on aPTT results to maintain target range. If below range, increase dose; if above range, decrease dose or hold.

Platelet Count

Frequency: Every 2-3 days (or daily in high-risk patients) from day 4 to day 14 of therapy, or until heparin is discontinued.

Target: Maintain above 100,000/mm³ or no more than 50% drop from baseline.

Action Threshold: If platelet count drops by >50% from baseline or falls below 100,000/mm³, suspect HIT and discontinue heparin immediately, initiate alternative anticoagulant, and test for HIT antibodies.

Signs and Symptoms of Bleeding

Frequency: Continuously throughout therapy.

Target: Absence of bleeding.

Action Threshold: Any signs of bleeding (e.g., hematuria, melena, epistaxis, petechiae, ecchymoses, significant drop in hemoglobin/hematocrit) require immediate assessment and potential dose reduction or discontinuation of heparin.

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Symptom Monitoring

  • Unusual bleeding or bruising (e.g., nosebleeds, gum bleeding, blood in urine or stool, excessive bruising)
  • Petechiae (small red or purple spots on the skin)
  • Signs of internal bleeding (e.g., severe headache, abdominal pain, weakness, dizziness, black tarry stools, red or dark urine)
  • Signs of Heparin-Induced Thrombocytopenia (HIT): new or worsening thrombosis, skin lesions at injection sites, acute systemic reactions after heparin administration, sudden drop in platelet count (>50% from baseline or <100,000/mm³)

Special Patient Groups

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Pregnancy

Heparin is generally considered the anticoagulant of choice during pregnancy because it does not cross the placenta and therefore does not cause fetal anticoagulation or teratogenic effects. It is used for the treatment and prevention of venous thromboembolism (VTE) in pregnant women. However, maternal risks include bleeding, osteoporosis (with long-term use), and heparin-induced thrombocytopenia (HIT).

Trimester-Specific Risks:

First Trimester: Low risk to fetus as it does not cross placenta. Maternal bleeding risk.
Second Trimester: Low risk to fetus. Maternal bleeding risk, potential for osteoporosis with prolonged use.
Third Trimester: Low risk to fetus. Maternal bleeding risk, especially around delivery. Consider discontinuation prior to labor/delivery if possible, or use regional anesthesia with caution due to spinal hematoma risk.
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Lactation

Heparin is considered safe during breastfeeding. It is a large molecule and is not excreted into breast milk in clinically significant amounts. It is not absorbed orally by the infant.

Infant Risk: L1 (Safest) - No known risk to the infant.
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Pediatric Use

Heparin can be used safely in pediatric patients, including neonates, infants, children, and adolescents, for various thrombotic conditions. Dosing is weight-based and requires careful titration and monitoring of aPTT or anti-Xa levels due to differences in pharmacokinetics and pharmacodynamics compared to adults. Neonates and infants may require higher doses per kg due to higher antithrombin levels and faster clearance.

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Geriatric Use

Elderly patients (≥65 years) may have an increased risk of bleeding with heparin therapy, particularly those with impaired renal function or multiple comorbidities. Lower initial doses or more conservative dosing strategies may be considered, and close monitoring for bleeding complications is essential.

Clinical Information

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Clinical Pearls

  • Heparin's anticoagulant effect is highly variable among individuals, necessitating careful laboratory monitoring (aPTT or anti-Xa levels) and dose titration.
  • Heparin-Induced Thrombocytopenia (HIT) is a serious, immune-mediated complication characterized by a significant drop in platelet count (typically >50% from baseline) and a paradoxical increase in thrombotic risk. It usually occurs 5-10 days after initiation of heparin. Discontinue heparin immediately if HIT is suspected and initiate alternative non-heparin anticoagulation.
  • Protamine sulfate is the specific antidote for heparin overdose. 1 mg of protamine sulfate neutralizes approximately 100 units of heparin.
  • Heparin is not absorbed orally and must be administered parenterally (IV or SC).
  • Subcutaneous heparin for prophylaxis should not be rubbed after injection, as this can increase bruising.
  • Heparin can cause hyperkalemia by inhibiting aldosterone secretion, especially in patients with renal impairment or those on potassium-sparing diuretics.
  • Avoid intramuscular injection of heparin due to the high risk of hematoma formation.
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Alternative Therapies

  • Low Molecular Weight Heparins (LMWH) (e.g., enoxaparin, dalteparin): Often preferred for prophylaxis and outpatient treatment due to more predictable pharmacokinetics, once-daily dosing, and lower incidence of HIT.
  • Direct Oral Anticoagulants (DOACs) (e.g., dabigatran, rivaroxaban, apixaban, edoxaban): Used for DVT/PE treatment and prevention, and stroke prevention in atrial fibrillation. Offer oral administration and do not require routine monitoring.
  • Warfarin: Oral vitamin K antagonist, used for long-term anticoagulation. Requires regular INR monitoring.
  • Fondaparinux: Synthetic pentasaccharide, selectively inhibits Factor Xa via ATIII. Used for DVT/PE prophylaxis and treatment, and in patients with a history of HIT.
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Cost & Coverage

Average Cost: Price varies widely by manufacturer, concentration, and quantity. Typically ranges from $5 to $50 per vial/syringe. per 1ml vial (10,000 units/ml)
Generic Available: Yes
Insurance Coverage: Tier 1 or 2 (Generic, preferred brand if applicable). Generally well-covered by most insurance plans due to its essential nature.
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General Drug Facts

If your symptoms or health problems persist or worsen, it is essential to contact your doctor promptly. To ensure safe use, never share your medication with others, and do not take medication prescribed for someone else. Store all medications in a secure location, out of reach of children and pets, to prevent accidental ingestion. Dispose of unused or expired medications properly; do not flush them down the toilet or pour them down the drain unless instructed to do so by a healthcare professional or pharmacist. If you are unsure about the correct disposal method, consult your pharmacist, who can also inform you about potential drug take-back programs in your area. Additionally, some medications may come with a separate patient information leaflet; check with your pharmacist for more information. If you have any questions or concerns about your medication, discuss them with your doctor, nurse, pharmacist, or other healthcare provider. In the event of a suspected overdose, immediately contact your local poison control center or seek emergency medical attention. Be prepared to provide details about the medication taken, the amount, and the time it occurred to ensure prompt and effective treatment.