## **Core Concept**
Inhaled beclomethasone dipropionate is a corticosteroid used in the management of asthma and chronic obstructive pulmonary disease (COPD). It acts locally in the lungs to reduce inflammation. Despite its local action, systemic absorption can occur, leading to potential side effects.

## **Why the Correct Answer is Right**
The correct answer, . (oropharyngeal candidiasis), is a well-known side effect of inhaled corticosteroids like beclomethasone dipropionate. This occurs because the drug is deposited in the mouth and throat as it is inhaled, and the local immunosuppressive effects of the corticosteroid facilitate the overgrowth of Candida albicans. This side effect can be minimized by proper inhaler technique and oral hygiene practices.

## **Why Each Wrong Option is Incorrect**
- **Option A:** (increase in appetite) is not a commonly associated side effect with inhaled corticosteroids. Systemic corticosteroids can cause changes in appetite, but this is less common with inhaled forms due to lower systemic absorption.
- **Option B:** (thinning of skin) is more commonly associated with systemic corticosteroid use. Inhaled corticosteroids can have systemic effects, but significant skin thinning is rare and usually associated with high doses of systemic corticosteroids.
- **Option C:** (growth suppression) is a concern with long-term use of inhaled corticosteroids in children, but it is not the most common side effect and is more related to systemic effects over time.

## **Clinical Pearl / High-Yield Fact**
A key clinical pearl is that inhaled corticosteroids like beclomethasone dipropionate can cause **oropharyngeal candidiasis**. Patients should be advised on proper inhaler technique and the importance of good oral hygiene to minimize this risk. Rinsing the mouth after inhalation can help reduce the incidence of thrush.

## **Correct Answer:** . (oropharyngeal candidiasis)