Which of the following is NOT a common side effect of antihypertensive medications?

Antihypertensive medications can lead to various side effects due to their pharmacological actions. Dry mouth, headaches, and fatigue are frequently reported side effects associated with these medications.

Dry mouth can occur as a result of certain classes of antihypertensives that affect salivary gland function or alter fluid balance in the body. Headaches might arise from blood pressure changes or as a side effect of the medication itself. Fatigue is also commonly reported, as blood pressure-lowering medications can lead to a decrease in overall energy levels or changes in blood flow, which can result in feelings of tiredness.

Weight gain, on the other hand, is not typically associated with antihypertensive medications. In fact, many of these drugs may even contribute to weight loss or have a neutral effect on weight. Some antihypertensives could potentially lead to water retention, but this is generally not characterized as weight gain in the conventional sense. Therefore, stating that weight gain is not a common side effect accurately reflects the profile of antihypertensive medications.