Check individual response before driving or performing complicated tasks. Renal or hepatic impairment. Not to be used during pregnancy. Not recommended during breastfeeding. Childn <12 yr. Elderly.
Increased plasma level when co-administered w/ erythromycin or ketoconazole. Concomitant administration of Al- & Mg hydroxide-containing antacids w/in 15 min causes a reduction in bioavailability of fexofenadine HCl.