T48: Poisoning by agents primarily acting on smooth and skeletal muscles and the respiratory system

T48.4: Poisoning: Expectorants

When we breathe, the air gets into the body via the respiratory tract. The respiratory tract can be divided into the upper and the lower respiratory tracts. The nose and throat form part of the upper respiratory tract. The lower respiratory tract begins at the larynx. This includes the trachea and the bronchia.

The purpose of expectorants is to clear mucous from the airways. They can be used for coughs and other disorders of the airways, for example.

A drug can cause poisoning if, for example, too much of it is taken. The drug may also be administered or taken by mistake.

Poisoning by expectorants can cause nausea and vomiting, for example. The airways may also become constricted. Depending on which expectorant has caused the poisoning, there can be other symptoms, too.