Final answer:
Orthostatic hypotension is a potential adverse reaction that can occur with all antihypertensive medications. Other adverse reactions may vary depending on the specific medication used.
Step-by-step explanation:
Orthostatic hypotension is a potential adverse reaction that can occur with all antihypertensive medications. It is characterized by a temporary drop in blood pressure when changing positions, such as standing up quickly. This can cause symptoms such as dizziness, lightheadedness, and even fainting.
Other adverse reactions may vary depending on the specific antihypertensive medication used. Some common adverse reactions include cardiac arrhythmias (a) and volume depletion (b), which can occur with certain diuretic medications or medications that affect fluid balance. Hypokalemia (c) or low potassium levels can also occur with certain diuretics, while orthostatic hypotension (d) is a potential side effect of many antihypertensive medications.