Allegra vs generic: are they the same?
Allegra is the originator brand for the active ingredient Fexofenadine. Once the original patent expired, authorised generic versions of the same active ingredient became available. For most users at 30mg, 60mg, 120mg, 180mg, the practical question is: is the generic just as good, and what really differs?
What is the same
Authorised generics of Fexofenadine contain the same active substance at the same 30mg, 60mg, 120mg, 180mg strength as Allegra, with regulator-required bioequivalence to the originator. Clinical effect is, on average, the same. According to the prescribing information, generics meet the same regulatory standard and can substitute for the brand in most patients.
What can differ
Differences include manufacturer, country of production, excipients, tablet appearance, packaging and price. A small minority of patients react to a specific excipient that varies between manufacturers. Price is usually significantly lower for generics — often the most decisive practical difference for chronic use.
Frequently asked questions
Is generic Fexofenadine as effective as Allegra? ▾
For most users at 30mg, 60mg, 120mg, 180mg, yes — authorised generics of Fexofenadine are required to demonstrate bioequivalence to Allegra and produce the same clinical effect on average. Some users notice no difference; a few report subjective differences that are usually due to excipients or expectation.
Why does Allegra cost more than the generic? ▾
The price difference reflects the originator's development costs, brand recognition and marketing, plus the larger volume and competition among generic manufacturers. The active ingredient Fexofenadine itself is identical between brand and authorised generic at 30mg, 60mg, 120mg, 180mg.
More on Allegra
- With alcoholAllegra and alcohol — is it safe to drink?
- With foodShould Allegra be taken with food?
- Side effectsAllegra side effects: common, rare and warning signs
- Dosage guideAllegra dosage guide: how much to take and when
- OnsetHow fast does Allegra start working?
- DurationHow long does Allegra last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.