Clexane Injection Side Effects in Pakistan

A complete guide to the side effects of Clexane Injection. From common effects to serious warnings — everything you need to know is on this page.

Compiled by the PakVita Editorial Team · AI-assisted drafting with editorial review · Sourced from DRAP, WHO, BNF · Last updated: 2026-07-09

Side Effects

Quick Answer

Common side effects of Clexane Injection include bruising and pain at the injection site. Serious effects such as major bleeding, heparin-induced thrombocytopenia (HIT), or spinal haematoma require immediate emergency medical attention. Contact your doctor immediately if you notice unusual or excessive bleeding from any site.

Side Effects at a Glance

Common

Bruising or pain at the injection site
Minor bleeding (e.g. from cuts or gums)
Thrombocytopenia (low platelet count) — monitor with blood tests

Serious — See a Doctor

Major bleeding (internal, spinal, or intracranial) — seek emergency help immediately
Heparin-Induced Thrombocytopenia (HIT) — paradoxical clot formation
Spinal haematoma with neuraxial anaesthesia (serious and rare)

When to See a Doctor Immediately

If you notice unusual or excessive bleeding from any site (wounds, gums, urine, stools)
If you develop severe back pain or abdominal pain (possible internal bleeding)
If you experience sudden weakness or numbness in legs after a spinal procedure
If you notice unexpected clot formation despite being on Clexane (possible HIT)

Clexane Injection Side Effects (Nuksanat)

Clexane Injection (Enoxaparin Sodium) is an effective anticoagulant but carries a significant risk of bleeding. All patients using Clexane must be aware of the signs of bleeding and know when to seek emergency help.

Common Side Effects (Aam Nuksanat)

Bruising or pain at the injection site
Minor bleeding (e.g. from cuts, gums, or nose)
Thrombocytopenia (low platelet count) — monitor with blood tests

These side effects are usually manageable. Report injection site problems to your doctor or nurse.

Serious Side Effects (Sanjeedah Nuksanat)

Major bleeding (internal, spinal, or intracranial) — seek emergency help immediately
Heparin-Induced Thrombocytopenia (HIT) — paradoxical clot formation — see a doctor immediately
Spinal haematoma with neuraxial anaesthesia — seek emergency help immediately (rare but serious)

When to See a Doctor (Kab Doctor Se Milna Zaroori Hai)

If you notice unusual or excessive bleeding from any site (wounds, gums, urine, stools)
If you develop severe back or abdominal pain (possible internal bleeding)
If you experience sudden weakness or numbness in legs after a spinal anaesthesia or procedure (possible spinal haematoma — a medical emergency)
If you notice unexpected clot symptoms despite anticoagulation (possible HIT)

Warnings and Precautions (Ihtiyat)

Do not use if you have active major bleeding
Monitor platelet count during treatment
Dose adjustment required in kidney disease

Side Effects Summary Table

Type	Side Effect	Action
Common	Bruising at injection site	Monitor; rotate injection sites
Common	Minor bleeding	Monitor; inform doctor
Common	Low platelet count	Blood test monitoring required
Serious	Major internal bleeding	Emergency help immediately
Serious	HIT (paradoxical clotting)	Emergency help immediately
Serious	Spinal haematoma	Emergency help immediately

Reporting Side Effects

If you notice any unexpected side effect, report it on the DRAP pharmacovigilance portal: https://www.dra.gov.pk/pharmacovigilance

The information in this guide is for educational purposes only. If you notice any bleeding or other serious side effects, seek emergency medical help immediately.

Frequently Asked Questions

What are the most common side effects of Clexane Injection?

The most commonly reported side effects of Clexane Injection are bruising and mild pain at the injection site, and minor bleeding. These are usually manageable. Inform your doctor if injection site reactions are severe.

Can Clexane Injection cause allergic reactions?

Yes, Clexane Injection can cause allergic reactions including skin rash, itching, and in rare cases severe allergic reactions. Stop use and seek emergency medical help immediately if signs of allergy appear.

Is Clexane Injection safe to take for a long time?

Long-term use is possible but requires close medical monitoring. Your doctor will regularly check your platelet count and kidney function to monitor for complications including HIT and dose accumulation in kidney disease.

What should I do if I experience bleeding from Clexane Injection?

Minor bleeding at injection sites is common. For serious bleeding (blood in urine, stools, severe bruising, or internal bleeding symptoms), stop the injection and seek emergency medical help immediately.

Does Clexane Injection affect the liver or kidneys?

Clexane is eliminated by the kidneys. Patients with severe kidney impairment require dose adjustment to avoid accumulation and increased bleeding risk. Always inform your doctor of any kidney problems.

Sources

DRAP Registered Products Database — Drug Regulatory Authority of Pakistan
WHO Model List of Essential Medicines, 23rd ed. (2023) — World Health Organization
British National Formulary (BNF) — BMJ Group & Pharmaceutical Press

Medical disclaimer

This page is for educational use only and does not replace professional medical advice. Always confirm diagnosis, dose, and interactions with a qualified doctor or pharmacist before starting or changing any medicine.