Abstract
The goal of the article is to emphasize the fact that adverse drug effects which are manifested in the oral cavity are exhibited in two ways. This may occur either after a direct application of the preparation used in dental practice, or due to the application of the drug for nondental purpose.
That is why the adverse effects of medicines prescribed by various clinical specialists should be considered by stomatologists in their own clinical practice. Examples are reported of some serious drug adverse effects manifested on the oral mucous membrane and gum.
Attention is paid to the classes which reveal adverse reactions after applications as local anaesthetics, corticosteroids and others.