What is a common side effect of antidepressants?

Antidepressants, particularly those affecting serotonin levels such as selective serotonin reuptake inhibitors (SSRIs), can lead to an increase in appetite as a common side effect. This happens because the changes in neurotransmitter activity can influence hunger signals and make patients feel hungrier than usual. Users may experience weight gain over time as a result of increased calorie intake.

This side effect varies between individuals and is a significant consideration when managing a treatment plan for depression, as it can impact long-term adherence to medication. It is important for healthcare providers to monitor weight and discuss nutritional considerations with patients starting on these medications.

In contrast, the other options provided do not directly correlate with commonly observed side effects of antidepressants. While nausea can occur, it is not the most widespread effect associated with this class of medications. Fluid retention or increased cough reflexes are less common and largely unrelated to antidepressant action, which focuses on mood regulation rather than physiological changes impacting these specific systems.