One of the most common side effects of inhaled beclomethasone dipropionate is:
Pneumonia
Oropharyngeal candidiasis
Atrophic rhinitis
Pituitary adrenal suppression
(Ref: KDT 6/e p225) Most common adverse effect of inhaled coicosteroids is oropharyngal candidiasis. Pituitary adrenal suppression is less likey with inhalational route of coicosteroids than with oral route.
Other topics and Adverse effects