Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Zestoretic (lisinopril/hydrochlorothiazide) and prazosin (Minipress) are both used to lower high blood pressure, but they have some key differences. Zestoretic is a combination of an ACE inhibitor and a diuretic, taken once daily, and is considered a first-choice option for blood pressure management. It works by relaxing blood vessels and removing extra water and electrolytes from your body. On the other hand, prazosin is an alpha blocker that relaxes blood vessels and is typically taken 2 to 3 times a day. Prazosin is not a first-choice medication for high blood pressure due to its side effects like dizziness, headache, and drowsiness. Zestoretic can cause a dry cough and is not safe for pregnant or breastfeeding women, while prazosin can cause drowsiness and is sometimes used off-label for PTSD-related nightmares. Both medications can cause dizziness, but prazosin has a higher risk of causing fainting, especially in older adults.
Zestoretic (lisinopril / hydrochlorothiazide)
Prazosin (Minipress)
Zestoretic (lisinopril / hydrochlorothiazide)
Prazosin (Minipress)
Summary of Zestoretic vs. Prazosin
Summary for ACE inhibitor/Diuretic (water pill) combo
Prescription only
Zestoretic is a combination blood pressure medication for adults. It contains lisinopril (an angiotensin-converting enzyme (ACE) inhibitor) and hydrochlorothiazide (a thiazide diuretic). It comes as a tablet that's taken by mouth once per day. Your prescriber will determine your dosage based on how high your blood pressure is and if you're taking other blood pressure medications. Some of the more common side effects it can cause include dizziness, headache, and cough. Zestoretic (lisinopril / hydrochlorothiazide) is available as a generic.
Summary for Alpha blocker
Prescription only
Prazosin (Minipress) is an alpha blocker that's used to lower high blood pressure. It works by relaxing your blood vessels, so blood flows through more easily. Prazosin (Minipress) is taken by mouth, typically 2 to 3 times a day. But it isn't a first-choice medication to lower blood pressure because it can cause bothersome side effects like dizziness, headache, and sleepiness.