When it comes to allergies, I'm a grass ragweed pet dander, but my allergy medicine wasn't approved for the pet dander So it was either get rid of it or get rid of Rufus Does your allergy medicine treat your indoor and outdoor allergies like some allergy medicines? Prescription Zyrtec is FDA approved for indoor and outdoor allergies and studies drowsiness was the most common side effect others included fatigue and dry mouth Most were mild or moderate ask your doctor about switching to Zyrtec Zyrtec. That's Zyrtec lots of allergies Just one Zyrtec