The purpose of the study is to assess the relative bioavailability of a new galenic form of fexofenadine HCl new formulation tablet (test drug) taken with or without water compared to fexofenadine HCl film-coated tablets (reference form) taken with water under fasting conditions.

Inclusion Criteria:

1. Male or female non-smokers (no use of tobacco or nicotine products within 3 months prior to screening), ≥18 and ≤55 years of age, with body-mass-index (BMI) >18 and <29.9 kilogram per meter square (kg/m^2) and body weight ≥50.0 kg to ≤100.0 kg for males and ≥40.0 kg to ≤90.0 kg for females.

2. Healthy as defined by:

   1. the absence of clinically significant illness and surgery within 4 weeks prior to inclusion on Day 1.
   2. the absence of clinically significant history of neurological, endocrine, cardiovascular, respiratory, hematological, immunological, psychiatric, gastrointestinal, renal, hepatic, and metabolic disease.

3. Standard 12-lead electrocardiogram (ECG) parameters after 5 minutes resting in supine position in the following ranges:120 milliseconds (ms)\

Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org