Final answer:
The combination of spironolactone and hydrochlorothiazide can lead to hyperkalemia, hyponatremia, and orthostatic hypotension as common adverse effects.
Step-by-step explanation:
The common adverse effect that may occur with the combination of spironolactone and hydrochlorothiazide includes hyperkalemia, hyponatremia, and orthostatic hypotension.
Hyperkalemia: Spironolactone is a potassium-sparing diuretic, meaning it helps the body retain potassium. When combined with hydrochlorothiazide, which is a thiazide diuretic that increases sodium excretion, hyperkalemia (high potassium levels) may occur.
Hyponatremia: Thiazide diuretics like hydrochlorothiazide can increase the excretion of sodium, leading to low sodium levels in the blood (hyponatremia).
Orthostatic hypotension: Orthostatic hypotension is a drop in blood pressure when changing positions, such as from lying down to standing up. It can be a potential adverse effect of both spironolactone and hydrochlorothiazide.