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Fexet Tablet Side Effects in Pakistan

A complete guide to Fexet Tablet side effects.

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

Side Effects

Quick Answer

Fexet is well-tolerated. Common side effects include headache and nausea. It causes significantly less drowsiness than older antihistamines like chlorphenamine or promethazine.

Side Effects at a Glance

Common

  • Headache (Sar dard)
  • Nausea (Matli)
  • Dizziness (Chakkar — mild)
  • Drowsiness (rare — much less than older antihistamines)

Serious — See a Doctor

  • Severe allergic reaction (rare, paradoxical)
  • QT prolongation (very rare, with very high doses)

When to See a Doctor Immediately

  • Severe allergic reaction — rash, breathing difficulty, swelling
  • If side effects last more than 2–3 days
  • If new or unexpected symptoms develop

Fexet Tablet Side Effects (Nuksanat)

Fexet Tablet is generally safe at the correct dose, but side effects can occur.

Common Side Effects (Aam Nuksanat)

  • Headache (Sar dard)
  • Nausea (Matli)
  • Dizziness (Chakkar — mild)
  • Drowsiness (rare — much less than older antihistamines)

Serious Side Effects (Sanjeedah Nuksanat)

  • Severe allergic reaction (rare, paradoxical) — see a doctor immediately
  • QT prolongation (very rare, with very high doses) — see a doctor immediately

When to See a Doctor

  • Severe allergic reaction (rash, breathing difficulty, swelling)
  • If side effects last more than 2–3 days

Reporting Side Effects

DRAP pharmacovigilance portal: https://www.dra.gov.pk/pharmacovigilance

The information in this guide is for educational purposes only. Always consult your doctor or pharmacist.

Frequently Asked Questions

What are the most common side effects of Fexet Tablet?

Common side effects include Headache (Sar dard), Nausea (Matli), Dizziness (Chakkar — mild). These are usually mild.

Can Fexet Tablet cause allergic reactions?

Yes. Signs include rash, swelling, or difficulty breathing. Stop and seek emergency help immediately.

Is Fexet Tablet safe long-term?

Long-term use should only be under medical supervision. Your doctor will monitor for side effects.

What should I do if I experience side effects?

For mild effects, inform your pharmacist. For serious effects, stop the medicine and contact your doctor.

Does Fexet Tablet affect the liver or kidneys?

Fexet Tablet may require monitoring of liver and/or kidney function. Your doctor will advise based on your tests.

Related medicines

Brand alternatives, same-class options, and other medicines used for the same conditions as Fexet Tablet.

Other antihistamines (allergy medicine)

Sibling medicines in the Antihistamines (Allergy Medicine) class.

All in class →

Used for the same conditions

Other medicines commonly used for cold and flu and overlapping conditions.

Cold and Flu hub →

Sources

  1. DRAP Registered Products Database — Drug Regulatory Authority of Pakistan
  2. WHO Model List of Essential Medicines, 23rd ed. (2023) — World Health Organization
  3. 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.