What is a common side effect of inhaled corticosteroids?

Inhaled corticosteroids are commonly used in the management of asthma due to their anti-inflammatory properties. A well-documented side effect of these medications is oral thrush, also known as oropharyngeal candidiasis. This condition occurs because corticosteroids can suppress local immune responses in the mouth and throat, allowing for the overgrowth of Candida yeast.

To minimize this risk, healthcare providers often recommend that patients rinse their mouths with water and spit after using the inhaler, as this practice helps to eliminate leftover medication from the oral cavity and reduces the chances of developing oral thrush.

The other options mentioned do not typically relate to the use of inhaled corticosteroids. Weight gain and increased appetite are more commonly associated with systemic corticosteroid use, while drowsiness is not a characteristic side effect of inhaled forms. The specific action of inhaled corticosteroids in the lungs primarily results in localized effects, thus oral thrush stands out as a notable side effect in this context.