High Quality Content by WIKIPEDIA articles! Beclometasone dipropionate (INN modified) or beclomethasone dipropionate (USAN, former BAN), also referred to as beclometasone (INN), is a potent glucocorticoid steroid. In the form of an inhaler (e.g. Clenil, Qvar), a wide number of brands of which are available, it is used for the prophylaxis of asthma. As a nasal spray (e.g. Beconase, alanase, Vancenase), it is used for the treatment of rhinitis (e.g. hayfever) and sinusitis. In some instances, it is used by oral pathologists in the treatment of unusually severe aphthous ulcers.