Fexofenadine Hydrochloride

Fenafex

40.00 ฿
(฿4/tablet)
Shipping calculated at checkout.


Fenafex 180 mg — A 2nd-generation antihistamine for chronic urticaria and seasonal allergic rhinitis. Lasts 24 hours with minimal drowsiness.

💊 Active Ingredient: Fexofenadine Hydrochloride
⏱️ Dosage: Once daily, with or without food
🍽️ Take with water only — avoid fruit juices (orange, apple, grapefruit)
📦 Pack: 10 film-coated tablets per blister strip
⚡ Key Benefit: Least sedating 2nd-gen antihistamine — full 24-hour relief in one tablet
🌡️ Storage: Below 30°C, away from light and moisture

Variant: 60mg
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Variant

Product Description

Non-drowsy second-generation antihistamine Fenafex contains Fexofenadine Hydrochloride, a selective peripheral H1-receptor antagonist with minimal sedation. Relieves allergic rhinitis, sneezing, runny nose, itchy eyes and chronic urticaria. Fast onset within 1 hour, lasts 12-24 hours.

📊 Key facts about Fenafex

  • Fexofenadine has low blood-brain barrier penetration, causing significantly less drowsiness than first-generation antihistamines
  • Fenafex 180 mg once daily for chronic urticaria, or 60 mg twice daily for allergic rhinitis
  • For an alternative antihistamine, see Alerest (Cetirizine)
  • Available in 60 mg (10 tablets) and 180 mg (10 tablets), manufactured in Thailand

🏭 Manufactured by Community Pharmacy PCL. Fexofenadine HCl

⚠️ Take with water only — avoid fruit juices (orange, apple, grapefruit) which reduce Fexofenadine absorption.

Supatcheree A., Pharmacist

Medically reviewed by

Supatcheree A., Pharmacist | Sources: StatPearls, MIMS, Drugs.com, NHS

Last reviewed: 2026-04-18

About Fenafex

What is Fenafex?

Fenafex is a second-generation antihistamine with Fexofenadine Hydrochloride:

  • Mechanism: Competitively blocks peripheral H1-receptors, preventing histamine from triggering allergic symptoms
  • Non-drowsy: Low blood-brain barrier penetration means significantly less sedation than first-generation antihistamines
  • Absorption: Onset within 1 hour, duration 12-24 hours. Excreted mainly via feces, minimal hepatic metabolism

Fenafex 180 mg once daily for urticaria, 60 mg twice daily for allergic rhinitis.

What does Fenafex treat?

Fenafex with Fexofenadine treats:

  • Allergic Rhinitis — Relieves sneezing, runny nose, nasal congestion, itchy nose/palate, and eye symptoms within 1 hour
  • Chronic Idiopathic Urticaria — Fenafex 180 mg once daily significantly reduces hives and itching. Safe for continuous use
  • Other allergies — May be used for food allergies, insect allergies as directed

Symptom relief only. Consult a pharmacist if no improvement after 3-5 days.

How to take Fenafex / Dosage

Dosage:

  • Allergic rhinitis: Adults/children 12+: Fexofenadine 60 mg twice daily. Children 6-11: 30 mg twice daily
  • Chronic urticaria: Adults: Fenafex 180 mg once daily

How to take:

  1. Take with water only — avoid orange, apple or grapefruit juice (reduces absorption)
  2. Can be taken with or without food
  3. Avoid antacids with aluminium/magnesium within 2 hours

Renal impairment: Consult a pharmacist for dose adjustment.

Missed dose: Take as soon as remembered. Skip if near next dose — do not double.

Side effects of Fenafex

Common: Headache (most common), mild drowsiness (much less than first-gen), nausea, indigestion

Uncommon: Dry mouth, fatigue, dizziness, abdominal pain

Stop and seek help if: Severe allergic reaction (widespread rash, difficulty breathing, swelling of face/tongue/throat), rapid heartbeat

Fenafex causes significantly less drowsiness than first-generation antihistamines. Most people can drive normally, but observe initial response.

Contraindications / Precautions

Do not use: Allergy to Fexofenadine, severe renal impairment (consult doctor), children under 6 (tablet form)

Precautions:

  • Avoid fruit juices (orange, apple, grapefruit) — reduce Fexofenadine absorption by 30-40%
  • Space antacids (aluminium/magnesium) by 2+ hours
  • Avoid alcohol — may increase drowsiness

Pregnancy/breastfeeding: Consult a doctor. Not recommended in first trimester. May be excreted in breast milk.

Fenafex vs other antihistamines

Fenafex vs other antihistamines at Intimo Life:

  • vs Telfast (Fexofenadine): Same active ingredient. Telfast is the original brand by Sanofi. Fenafex is a generic — more affordable, equivalent efficacy
  • vs Alerest (Cetirizine 10 mg): Different antihistamine, may cause slightly more drowsiness

Summary: Fenafex = same as Telfast but cheaper | Alerest = different agent, may be drowsier.

How fast does Fenafex work?

Fenafex starts working within 1 hour. Sneezing, runny nose, itching and hives begin to improve noticeably.

Fexofenadine lasts 12-24 hours — Fenafex 180 mg once daily covers the full day. Fenafex 60 mg lasts ~12 hours, requiring twice-daily dosing.

Where to buy Fenafex?

Fenafex with Fexofenadine is available at pharmacies or online at Intimo Life. Two sizes: 60 mg (10 tablets) for allergic rhinitis and 180 mg (10 tablets) for chronic urticaria. Affordable, non-drowsy formula delivered discreetly.

⚠️ Disclaimer

The information on this page is for general informational purposes only and is not intended to replace professional medical advice, diagnosis, or treatment from a qualified doctor or pharmacist. If you have any questions about your symptoms or medication, always consult a doctor or pharmacist first.

Frequently Asked Questions

Fenafex contains Fexofenadine HCl, a non-drowsy second-generation antihistamine for allergic rhinitis and chronic urticaria.

180 mg once daily for chronic urticaria. 60 mg twice daily for allergic rhinitis. Same Fexofenadine, different dosing schedules.

Fenafex with Fexofenadine causes minimal drowsiness compared to first-gen antihistamines. Most people can drive normally. Observe initial response.

Orange, apple and grapefruit juice inhibit OATP transporters, reducing Fexofenadine absorption by 30-40%. Take Fenafex with water only.

Children 6-11: Fexofenadine 30 mg twice daily (appropriate formulation needed). Ages 12+: same as adults. Under 6: tablet form not recommended.

Aluminium/magnesium antacids reduce Fexofenadine absorption. Space Fenafex at least 2 hours from antacids.

Fenafex (Fexofenadine) = least sedating. Alerest (Cetirizine) = slightly stronger effect but more drowsy. Choose Fenafex if minimal sedation is important.

Fenafex 180 mg: once daily only. Fexofenadine 180 mg lasts 24 hours — covers urticaria symptoms all day.

Consult a doctor before use during pregnancy, especially first trimester. Fexofenadine may be excreted in breast milk.

Store below 30°C, away from sunlight and moisture. Keep in original packaging. Do not use expired medicine.

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