What ingredients are in Allegra-D?
Allegra-D combines an antihistamine with a decongestant. The active ingredients are:
- Fexofenadine (the antihistamine; often written as “fexofenadine hydrochloride”)
- Pseudoephedrine (the decongestant; often written as “pseudoephedrine hydrochloride”)
These ingredients are used for allergy symptoms plus nasal congestion.
What are the common forms and strengths?
Allegra-D products come in different dosing strengths (for example, formulations sold as “Allegra-D 12 Hour” or “Allegra-D 24 Hour”), and the exact mg amounts for fexofenadine and pseudoephedrine can vary by product and country.
What other (inactive) ingredients are included?
Along with the active ingredients, Allegra-D tablets also contain inactive ingredients such as fillers, coatings, and binders. Those can vary by specific product/strength, so the most accurate way to confirm them is to check the box or the full package insert for your exact Allegra-D version.
How do Allegra-D ingredients work?
- Fexofenadine helps reduce allergy symptoms like sneezing, runny nose, and itching by blocking histamine.
- Pseudoephedrine reduces nasal congestion by shrinking swollen blood vessels in the nasal passages.
Why does the decongestant matter for ingredients?
Because Allegra-D includes pseudoephedrine, some people avoid it or need medical guidance, especially those with certain heart conditions, uncontrolled high blood pressure, or those sensitive to stimulants.
If you tell me the exact product name on your package (for example, “Allegra-D 12 Hour” or “Allegra-D 24 Hour”) and the country, I can help confirm the specific active ingredient strengths from that version.