Trusted, medically reviewed health information • Not a substitute for medical advice
Medically Verified MonographPrescription OnlyClass: Anticoagulant

Heparin

Generic Name: Heparin

Common Brand Names: Hep-Lock
Dosage Form:Injection
Route:IV, SC
Pregnancy Category:C
Last Reviewed:9/21/2026

Seek Urgent Medical Attention If:

You experience severe allergic reaction symptoms (swelling of the face, lips, tongue, or throat causing difficulty breathing), severe rash with skin peeling, sudden intense chest pain, or symptoms of overdose. Call emergency medical services immediately.

Uses & Medical Indications

Prophylaxis and treatment of thromboembolic disorders

Medical Conditions Treated:

DVT, PE, AFib

Dosage & Administration Guidelines

Adult Dosage

5000 units SC every 8-12 hours for prophylaxis

Pediatric Dosage

Weight-based protocol

Elderly / Geriatric Considerations

May require lower doses

Maximum Dose Limit

Based on aPTT

Renal Impairment:

Use with caution

Hepatic Impairment:

Use with caution

Side Effects & Safety Warnings

Common Side Effects

Bleeding, bruising at injection site

Serious Adverse Reactions

Heparin-induced thrombocytopenia (HIT), severe hemorrhage

Contraindications:

Severe thrombocytopenia, uncontrolled active bleeding

Important Warnings & Precautions:

Risk of fatal bleeding

Interactions (Drugs, Food & Alcohol)

Drug-Drug Interactions:

NSAIDs, aspirin, other anticoagulants

Food & Dietary Interactions:

N/A

Alcohol Interaction Warning:

Avoid excessive use

Pregnancy & Breastfeeding Safety

Pregnancy Safety

Does not cross placenta, considered safe

Breastfeeding / Lactation

Compatible

Patient Counseling & Practical Advice

How to Take:

Report signs of bleeding

What to Do if You Miss a Dose:

Contact provider

Recommended Monitoring & Lab Tests:

aPTT, platelets

Trustworthy Sources & Medical Review

Content for Heparin was synthesized and fact-checked against standardized regulatory monographs, official pharmacopoeias, and national health authorities:

  • Central Drugs Standard Control Organization (CDSCO) — National List of Essential Medicines
  • World Health Organization (WHO) — Model List of Essential Medicines 23rd List
  • Indian Pharmacopoeia Commission (IPC) — Indian Pharmacopoeia Drug Monographs
  • National Health Service (NHS) — Medicines A to Z Clinical Guidelines
Reviewer Credentials: PharmD, Clinical PharmacologistLast Reviewed Date: 9/21/2026

The information provided on this website is for educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.