Key Takeaways
- Generic Allegra costs 60‑80% less than the brand version.
- Only UK‑licensed online pharmacies can sell it legally.
- Check the active ingredient, price, and shipping policy before you click ‘Buy’.
- Watch out for counterfeit packs - verify the seller’s registration number.
- Most orders arrive within 3‑5 working days with free delivery over £30.
When you need relief from hay fever or seasonal allergies, generic Allegra is a fexofenadine‑based antihistamine that works just like the brand‑name version but at a fraction of the price. It blocks histamine, the chemical that makes you sneeze, itch, and get a runny nose. The good news? You can order it from a reputable online pharmacy without a trip to the doctor’s office, as long as you follow a few safety steps.
Why Choose Generic Over the Brand?
Both brand and generic versions contain the same active ingredient, fexofenadine, which is proven to relieve allergy symptoms within an hour. The only real difference is the price tag and the inactive fillers that manufacturers use. In the UK, the MHRA (the Medicines and Healthcare products Regulatory Agency) requires generics to meet the same quality, safety, and efficacy standards as the original.
Because the active ingredient is identical, you get the same 24‑hour relief. What you save on the pack can be spent on other health needs, like a nasal spray or eye drops.
How to Spot a Legitimate online pharmacy
Not every website that claims to sell medication is trustworthy. Follow this checklist before you add anything to your cart:
- Look for a UK registration number on the footer. The number should start with ‘MHRA’ and be verified on the agency’s register.
- Check that the site requires a valid prescription for prescription‑only medicines. Generic Allegra is OTC in the UK, but reputable sites will still ask for your age and any existing conditions.
- Read the privacy policy - a legitimate pharmacy protects your data and uses encrypted https connections.
- Search for customer reviews on independent forums, not just the site’s own testimonial carousel.

Step‑by‑Step Guide to Ordering
- Choose the correct dosage. Generic Allegra comes in 120mg tablets (once‑daily) and 180mg tablets (twice‑daily). Most adults need the 120mg dose.
- Enter your shipping address. Make sure the pharmacy ships to the UK; some sites only deliver within the EU.
- Select a payment method. Credit cards and PayPal are the safest; avoid direct bank transfers to unknown sellers.
- Double‑check the order summary. Look for the total cost, including any shipping fees.
- Submit the order and keep the confirmation email. It will contain the pharmacy’s registration number and a tracking link.
Pricing Tips and price comparison
Prices can vary wildly. Here’s a quick snapshot of what you might see in October2025:
Product | Active Ingredient | Pack Size | Price (GBP) | Regulatory Approval |
---|---|---|---|---|
Allegra (brand) | Fexofenadine 120mg | 30 tablets | £24.99 | MHRA |
Generic Allegra - Pharmacy A | Fexofenadine 120mg | 30 tablets | £12.49 | MHRA |
Generic Allegra - Pharmacy B | Fexofenadine 120mg | 30 tablets | £13.20 | MHRA |
Generic Allegra - Pharmacy C | Fexofenadine 120mg | 30 tablets | £11.95 | MHRA |
The cheapest options still meet the same quality standards. Look for bulk discounts (e.g., 60‑tablet packs) if you plan to stay stocked.
Shipping, Delivery, and Returns
Most UK‑based online pharmacies offer next‑day or two‑day delivery for orders placed before the cut‑off time. Free shipping is common for orders over £30. When the package arrives, check the label - it should display the pharmacy’s name, registration number, and a clear batch number.
If the product arrives damaged or you receive the wrong dosage, reputable sites have a 14‑day return window. Keep the original packaging and request a refund or replacement through the customer service portal.

Safety: side effects and Interactions
Fexofenadine is well‑tolerated, but a small percentage of users report mild headaches, dry mouth, or nausea. It does not usually cause drowsiness, unlike older antihistamines.
Watch out for interactions with certain medications, especially:
- Antacids containing aluminum or magnesium - they can reduce absorption.
- Ketoconazole or erythromycin - may increase fexofenadine levels.
- Alcohol - while not a direct interaction, heavy drinking can worsen allergy symptoms.
If you take any of these, talk to a pharmacist before ordering.
Avoiding counterfeit medication
Counterfeit drugs often have misspelled packaging, unusual colors, or lack a batch number. Here’s how to protect yourself:
- Verify the pharmacy’s MHRA registration number on the official database.
- Inspect the tablet’s shape and imprint - genuine generic Allegra tablets are round, white, and marked with “FEX 120”.
- Never buy from auction sites or social‑media marketplaces that claim “ultra‑cheap” prices.
- Use a credit card that offers purchase protection - you can dispute a charge if the product is counterfeit.
Frequently Asked Questions
Is generic Allegra as effective as the brand?
Yes. Both contain the same 120mg of fexofenadine, so the relief time and duration are identical. The difference is only in the inactive fillers and price.
Do I need a prescription to buy generic Allegra online?
No. In the UK, Allegra (fexofenadine) is an over‑the‑counter medication, so any licensed pharmacy can sell it without a script. However, reputable sites will still ask for basic health information.
How can I tell if an online pharmacy is legit?
Check for an MHRA registration number, secure https connection, clear contact details, and independent reviews. The pharmacy should also display a physical UK address.
What should I do if I receive the wrong medication?
Contact the pharmacy’s customer service within the return window (usually 14 days). Keep the packaging and request a refund or replacement. If you suspect a counterfeit, report it to the MHRA.
Can I take generic Allegra with other allergy meds?
It’s generally safe, but avoid stacking multiple antihistamines because it can increase side effects like headache. If you’re on a nasal spray or eye drops, there’s no conflict.
Buying generic Allegra online doesn’t have to be a gamble. Stick to licensed UK pharmacies, verify the registration number, compare prices, and keep an eye on the packaging. Follow the steps above, and you’ll have fast, affordable allergy relief delivered right to your door.
Reviews
Look, you can't just click "Buy" like it's a candy store. It's your responsibility to verify that MHRA number, otherwise you're supporting fraud. If you ignore the checklist, you might end up with a counterfeit pack that could do more harm than good. Do yourself a favour and actually read the fine print.