The present invention relates to the delivery of antihistamines through an inhalation route. Specifically, it relates to aerosols containing antihistamines that are used in inhalation therapy. In a method aspect of the present invention, an antihistamine is delivered to a patient through an inhalation...http://www.google.co.uk/patents/US7491047?utm_source=gb-gplus-sharePatent US7491047 - Delivery of antihistamines through an inhalation route
