Fexofenadine

Examples: Allegra. Check the exact formulation on your label.

What it is useful for

Treats allergy symptoms such as sneezing, itching and watery eyes. Not the strongest choice for nasal blockage.

Availability: US OTC

When to expect a difference

Initial effect

Varies by formulation.

Full benefit

No single reliable time applies.

Use period

Use only as directed on the product label.

Stop or ask

Stop for an adverse reaction and seek advice.

How to use it

• Take with water, not fruit juice.
• Ask about spacing from aluminum- or magnesium-containing antacids.

Use the dose on your specific package. Different concentrations and release types are not interchangeable.

Possible downsides

Headache, Possible dizziness.

Check suitability

Check allergies, health conditions and all other medicines before use. The finder can flag common restrictions, but it is not a complete interaction checker.

Pregnancy, breastfeeding, children, immune suppression and postoperative care are outside this finder.