Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Enalapril (Vasotec) and Hydrochlorothiazide (Microzide) are both used to treat high blood pressure, but they work in different ways and belong to different drug classes. Enalapril is an ACE inhibitor that relaxes blood vessels by blocking a protein called ACE, while Hydrochlorothiazide is a diuretic (water pill) that helps you urinate more to remove extra water and certain electrolytes from your body. Enalapril is also approved for treating heart failure, whereas Hydrochlorothiazide is used to reduce swelling from fluid buildup (edema), including edema caused by heart failure. Enalapril can be taken by children as young as 1 month old for high blood pressure, but Hydrochlorothiazide is typically used in adults. Common side effects of Enalapril include tiredness, dizziness, and cough, while Hydrochlorothiazide can cause dizziness, increased urination, and sensitivity to sunlight. Additionally, Enalapril is not safe to use during pregnancy, and Hydrochlorothiazide must be used with caution in people with severe kidney or liver problems.
Enalapril (Vasotec)
Hydrochlorothiazide
Enalapril (Vasotec)
Hydrochlorothiazide
Summary of Enalapril vs. Hydrochlorothiazide
Summary for ACE inhibitor
Prescription only
Enalapril (Vasotec) is a first-choice medication used for treating high blood pressure. It's also approved for heart failure. Enalapril (Vasotec) belongs to a class of medications called angiotensin-converting enzyme (ACE) inhibitors. It's taken by mouth, once or twice daily. Enalapril (Vasotec) doesn't cause many side effects, but some include tiredness, dizziness, and cough.
Summary for Diuretic (water pill)
Prescription only
Hydrochlorothiazide is a diuretic or water pill. It helps lower blood pressure. It also helps with swelling from fluid buildup (edema) caused by some health conditions, like heart failure and kidney problems. People of all ages can take hydrochlorothiazide tablets and capsules. But children typically take much smaller, weight-based doses. You typically take your dose by mouth once (sometimes twice) daily, but avoid nighttime dosing so you won't wake up to urinate. Some common side effects are dizziness and urinating more often.