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

Antihypertensive medications are known to have a variety of side effects, which can differ depending on the class of medication and the individual patient. Headaches, rash, and dizziness are all documented side effects associated with certain antihypertensive drugs.

Headaches can occur due to changes in blood pressure or as a direct effect of these medications, especially when starting treatment or adjusting dosages. Rash can be a reaction to specific medications within the class, and it could indicate an allergic response, which some patients may experience. Dizziness is another common side effect, often resulting from the medications causing blood vessels to dilate or lowering blood pressure too quickly.

Loss of appetite, while it can occur in some patients for various reasons, is not a widely recognized or documented side effect of antihypertensive medications. It is not typically associated with the pharmacological action of these drugs and may arise from other factors unrelated to antihypertensive use. Therefore, loss of appetite stands out as the correct choice for being not recognized as a side effect of antihypertensive medications.