allegix 120mg tablet - Fexofenadine (120mg) medicine

Allegix 120mg Tablet - Uses, Price, Side Effects

4.5 (14 reviews)
๐Ÿญ Intas Pharmaceuticals Ltd ๐Ÿ“ฆ Varies by brand ๐Ÿ’Š Allopathy ๐Ÿ“… Updated: Aug 21, 2026
๐Ÿ“‹ Prescription Required ๐Ÿ’Š Generic Available
Medically Reviewed
SaathiMed Expert Panel | Aug 21, 2026

What is allegix 120mg tablet used for?

Allegix 120mg Tablet contains Fexofenadine, an antihistamine used to relieve symptoms of seasonal allergies such as sneezing, runny nose, itchy eyes, and hives. It works by blocking histamine, a substance the body produces during an allergic reaction, thereby reducing allergy symptoms.

  • Generic Name: Fexofenadine
  • Manufacturer: Intas Pharmaceuticals Ltd
  • Form: Allopathy
  • Pregnancy Category: C
  • Prescription Required: Yes
๐Ÿ’ก Did You Know? The first generic medicine was introduced in India in 1970 after the Patents Act was amended.

๐Ÿ’Š allegix 120mg tablet Uses & Benefits

Seasonal allergic rhinitis, Chronic idiopathic urticaria

Off-label uses: Atopic dermatitis, Eosinophilic esophagitis

๐Ÿ“‹ Drug Information

Generic Name(s)Fexofenadine
Brand NameAllegra
ManufacturerIntas Pharmaceuticals Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassRESPIRATORY
Action ClassH1 Antihistaminics (second Generation)
Route of AdministrationOral
StorageStore at 20-25ยฐC (68-77ยฐF); protect from moisture and light.
Shelf LifeAs per manufacturer

๐Ÿ”ฌ Pharmacology (PK/PD)

Pharmacokinetics

AbsorptionRapidly absorbed after oral administration; peak plasma concentration achieved in 1-3 hours.
DistributionWidely distributed; volume of distribution approximately 5.4-5.8 L/kg.
Protein Binding60-70% bound to plasma proteins, primarily albumin.
MetabolismMinimal hepatic metabolism; undergoes negligible metabolism via CYP450 system.
Half-Life14.4 hours (range 11-15 hours).
Excretion80% excreted unchanged in feces, 11% in urine.
BioavailabilityApproximately 33% (oral).
Onset of Action1 hour.
Peak Plasma Time1-3 hours.
Duration of Action24 hours.

How It Works

Selective peripheral H1-receptor antagonist; blocks histamine-mediated effects.

Mechanism Steps

1Histamine released from mast cells during allergic reaction.
2Fexofenadine binds to peripheral H1 receptors.
3Blocks histamine from binding to H1 receptors.

๐Ÿ’ก How to Take allegix 120mg tablet

Follow your doctor's prescription exactly.

Dosage Timeline

๐ŸŒ… Morning โœ… โ˜€๏ธ Afternoon โŒ ๐ŸŒ† Evening โœ… ๐ŸŒ™ Night โŒ

โš ๏ธ Side Effects of allegix 120mg tablet

โœ… Common Side Effects

  • Headache
  • Drowsiness
  • Dizziness
  • Nausea
  • Fatigue

๐Ÿšจ Serious Side Effects

  • Hypersensitivity reactions (angioedema, anaphylaxis)
  • Severe skin reactions (rare)

โš ๏ธ Rare Side Effects

  • Tachycardia
  • Palpitations
  • Transaminase elevation

Consult your doctor if you experience any unusual symptoms.

๐Ÿ”ฌ Drug Interactions

โš ๏ธ DrugSeverityEffect
Erythromycin Moderate Increased risk of fexofenadine side effects
Ketoconazole Moderate Increased fexofenadine levels
Antacids containing aluminum or magnesium Moderate Decreased absorption of fexofenadine

๐Ÿšจ Major Interactions

  • Erythromycin
  • Ketoconazole
  • Itraconazole
  • Rifampin

โšก Moderate Interactions

  • Aluminum/Magnesium-containing antacids
  • Fruit juices (grapefruit, orange, apple)

โ„น๏ธ Minor Interactions

  • Cimetidine
  • Fluoxetine

๐Ÿฝ๏ธ Food Interactions

Fruit juices (grapefruit, orange, apple) may decrease absorption; take with water.

๐Ÿท Alcohol Interaction

No significant interaction; alcohol may increase drowsiness in some individuals.

๐Ÿ›ก๏ธ Safety & Warnings

Liver
Low
Kidney
Low
Heart
Low
Pregnancy
Category C

๐Ÿšซ Contraindications

Hypersensitivity to fexofenadine or any component, Severe renal impairment (CrCl <10 mL/min)

๐Ÿ“Š Monitoring Parameters

Renal function (in patients with renal impairment), Symptoms of allergy

๐Ÿคฑ Lactation Safety

Low risk; excreted in breast milk in small amounts; consult physician.

๐Ÿ’Š Overdose Management

Supportive care; no specific antidote; hemodialysis not effective.

โฐ Missed Dose

Take as soon as remembered; skip if almost time for next dose; do not double dose.

๐Ÿ‘จโ€โš•๏ธ Reviewed by Expert

SaathiMed Expert Panel

MD, PhD - Pharmacology

Last reviewed on: Aug 21, 2026

๐Ÿ”— View Profile

๐Ÿ”„ Substitutes for allegix 120mg tablet

View All

Alternative brands with exact same active ingredient (Fexofenadine (120mg)):

Medical Note: Always consult your doctor before switching medications.

โญ User Reviews

Verified User Jul 10, 2026

Found this to be a helpful product. Good results.

Trusted Reviewer Jul 10, 2026

Found this to be a helpful product. Good results.

Trusted Reviewer Jul 10, 2026

Found this to be a helpful product. Good results.

Certified Buyer Jul 10, 2026

Helpful and effective medicine as per my experience. Always consult a doctor.

Regular Customer Jul 10, 2026

Effective and reliable. Worked as expected.

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