Do not take fexofenadine with fruit juice (such as apple, orange, or grapefruit). These juices can make it harder for your body to absorb fexofenadine.
Avoid taking an antacid within 2 hours before or after you take fexofenadine. Certain antacids can make it harder for your body to absorb  fexofenadine.
Ask a doctor or pharmacist before using other cough or cold medicines that may contain similar ingredients.
