Skip to content
Allegra

Allegra

Fexofenadine

Fexofenadine 120mg and 180mg film-coated tablets, used for seasonal allergic rhinitis and urticaria. A second-generation H1-receptor antagonist.

Active ingredient
Fexofenadine
Route
Oral use
Form
Film-coated tablet
Strengths
120 · 180mg

You will receive a quality generic equivalent, depending on stock.

No prescription needed: we place your order for Allegra on your behalf.

Alternative names
Telfast
Therapeutic class
Antihistamine
Pharmacological class
Second-Generation Antihistamine
Contraindications
hypersensitivity to fexofenadine
Precautions and warnings
avoid taking with fruit juices; generally non-sedating but caution is advised
Minor side effects
headache; drowsiness; nausea
Moderate side effects
dizziness; fatigue
Dosage forms
Film-coated tablet
Administration route
Oral use
Originator
Sanofi
Onset time
1 hour
Duration
24 hours
Storage instructions
Store below 30°C.
Drug interactions
grapefruit juice; aluminium-containing antacids
Age restrictions
Not recommended for children under 12.
Serious side effects

anaphylaxis, requires immediate medical attention; angioedema, requires immediate medical attention; chest tightness, requires immediate medical attention

Patient summary

Fexofenadine 120mg and 180mg film-coated tablets, used for seasonal allergic rhinitis and urticaria. A second-generation H1-receptor antagonist.

Mechanism of action

Fexofenadine is a selective H1-receptor antagonist. It competes with histamine at central and peripheral H1-receptors, thereby inhibiting the allergic response without significant sedative effects associated with first-generation antihistamines.

Pregnancy and breastfeeding

Pregnancy: Consult healthcare provider. Breastfeeding: Consult healthcare provider.

Allegra is the branded version of fexofenadine, a common treatment used to manage symptoms of Seasonal Allergic Rhinitis and Urticaria. Often identified by the alternative brand name Telfast, it is available in tablet form with available strengths of 120mg and 180mg. It is a widely used choice for allergy relief in many households.

Buying Allegra online

Generic fexofenadine, much of it produced in India, is far more affordable than the original brand. This helps expats and residents in areas where consistent supplies are hard to source.

Will I receive the original Allegra?

No. Allegra is the originator brand name, made by Sanofi, and Yasabai uses it to identify the medicine: you receive a generic with the same active ingredient (fexofenadine) at the same dose, mostly a recognised Indian branded generic. The exact brand depends on stock.

How is Allegra priced?

The price varies with strength and pack size. Allegra comes in 120 and 180mg strengths, in packs of 10 to 240 tablets, and the price per tablet for every option is shown above, in US dollars or the currency you choose. Larger packs cost less per tablet. Paying with Bitcoin or Ethereum gives you an extra 10% off.

Is Allegra sold under other names?

Other brands of fexofenadine include Telfast.

What conditions is Allegra used for?

Allegra contains fexofenadine, used for allergic rhinitis and urticaria. Fexofenadine is a selective H1-receptor antagonist.

When does Allegra start working?

Fexofenadine usually starts to work within 1 hour, and its effect lasts about 24 hours. The exact timing differs between people.

What are the side effects of Allegra?

The common side effects of fexofenadine are headache, drowsiness and nausea. Less common ones include dizziness and fatigue. Serious but less common side effects include anaphylaxis, angioedema and chest tightness, which need urgent medical attention.

What does Allegra interact with?

Fexofenadine can interact with grapefruit juice and aluminium-containing antacids. Tell your doctor or pharmacist about every medicine you take before you start Allegra.

Is Allegra available over the counter in Thailand?

Yes. Allegra is an over-the-counter medicine, and Yasabai does not ask for a prescription to order it. We are an online store, not a dispensing pharmacy; we arrange your order and delivery on your behalf.

Ordering without a prescription →

Can I get Allegra delivered in Thailand?

Yes. Our pharmacy partners ship from India to Thailand and across Asia in discreet packaging. Standard Airmail takes up to 3 weeks; Express Tracked Courier takes up to 1 week.

How ordering works →

What you will receive

Allegra is the originator brand name, made by Sanofi. We use it here to identify the medicine only; we are not affiliated with Sanofi and do not ship the original Allegra.

  • You receive a generic equivalent: the same active ingredient (Fexofenadine) at the same dose, mostly recognised Indian branded generics from vetted manufacturers.
  • The exact brand supplied depends on what is in stock at the dispatching warehouse.
  • A regulated generic matches the original ingredient for ingredient by legal standard.

Are all generics really the same? Read the honest answer.