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Blood Pressure Medications: How They Work and the Names of Common Generics

Kevin Hwang, MD, MPHFrank Schwalbe, MD
Written by Kevin Hwang, MD, MPH | Reviewed by Frank Schwalbe, MD
Updated on April 1, 2025

Key takeaways:

  • The treatment options for high blood pressure include low-cost generics and combination pills. This helps to make medications affordable and more convenient to take.

  • Medications to treat high blood pressure differ in how they work and who’s best suited to take them.

  • A healthcare professional will consider your age, history, and other factors when picking the best blood pressure medication for you. 

02:41

List of generic blood pressure medications

Here are the names of blood pressure medications that are low-cost generics, sorted by their class.

Thiazide diuretics

Here are some thiazide diuretics to treat blood pressure:

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Calcium channel blockers

The following are calcium channel blockers for blood pressure:

ACE inhibitors

The following blood pressure medications are angiotensin-converting enzyme (ACE) inhibitors:

Angiotensin II receptor blockers (ARBs)

Here’s a list of generic ARBs to lower your blood pressure:

Beta blockers

Here’s a list of generic blood pressure medications that are beta blockers:

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Alpha blockers

These medications are generic alpha blockers for blood pressure:

Alpha / beta blocker combinations

Here are alpha / beta blocker combos for blood pressure:

Loop diuretics

These loop diuretics are low-cost generics for blood pressure:

Potassium-sparing diuretics

Here are low-cost generic potassium-sparing diuretics:

Aldosterone antagonists

Here are two aldosterone antagonists for blood pressure:

Vasodilators

Here are low-cost generic vasodilators:

Alpha-2 receptor agonist

Here’s a generic alpha-2 receptor agonist for blood pressure:

Central agonists

The following are both central agonists:

Direct renin inhibitors

Here’s a direct renin inhibitor for blood pressure:

Common first-choice blood pressure medications

There are four types of blood pressure medications that are commonly used first:

  • Thiazide diuretics

  • Calcium channel blockers

  • ACE inhibitors

  • Angiotensin II receptor blockers (ARBs)

They work in different ways to lower blood pressure. Sometimes you may need more than one. 

Let’s take a look at the different types of first-choice blood pressure medications.

Type of Medication

How they work

Who they’re good for

Side effects

Examples

Common first choice?

Thiazide diuretics

Increase urination to get rid of extra water and sodium (salt), which reduces stress on the blood vessels

Most people 

Low sodium or potassium levels

Chlorthalidone (Thalitone) 

Hydrochlorothiazide (HCTZ)

Yes

Calcium channel blockers 

Block calcium at the heart, which slows the heart rate and relaxes the blood vessels

Most people

Swelling in the feet 

Amlodipine (Norvasc) 

Diltiazem (Cardizem)

Yes

ACE inhibitors

Stop the body from making angiotensin II — relaxing blood vessels and reducing fluid retention

Most people, but they’re especially good options for people with kidney disease 

High potassium

Dry cough

Angioedema (severe swelling of the face and mouth).

Benazepril (Lotensin) 

Lisinopril

(Zestril)

Yes

Angiotensin II receptor blockers (ARBs)

Block angiotensin II from attaching to its receptors — relaxing blood vessels and reducing fluid retention

Especially good options for people with kidney disease

Dizziness

Low blood pressure

Losartan

(Cozaar)

Valsartan

(Diovan)

Yes

Alternative blood pressure medications

There are several other types of medications that may be used to lower blood pressure. These are typically prescribed when your blood pressure is still high after trying the first-choice options mentioned above. They might be used if you have other health conditions that these medications can help to treat.

Let’s run through some of those choices.

Type of Medication

How they work

Who they’re good for

Side effects

Examples

Common first choice?

Beta blockers

Slow the heart rate — relieving stress on blood vessels

Helpful for those with coronary artery disease or who are pregnant

Dizziness

Tiredness

Constipation

Atenolol (Tenormin) 

Propranolol (Inderal)

Sometimes, especially during pregnancy

Alpha blockers

Relax the blood vessels so blood can flow more freely

Useful for some men with high blood pressure who also have an enlarged prostate

Lightheaded when standing up quickly 

Doxazosin (Cardura) 

Prazosin (Minipress)

Sometimes

Alpha / beta blocker combination pills

Act in the same way as single alpha and beta blockers

People whose blood pressure fluctuates significantly

Same as alpha and beta blockers

Carvedilol (Coreg) 

Labetalol

Not usually

Loop diuretics

Increase urination to get rid of excess fluid from the body

People who have extra fluid caused by heart failure or kidney disease

Low sodium or potassium levels

Furosemide (Lasix) 

Torsemide

Sometimes

Potassium- sparing diuretics

Increase urination to get rid of excess fluid from the body

People with heart failure or liver disease

Low sodium levels

Amiloride (Midamor)

Triamterene (Dyrenium)

No

Aldosterone antagonists

Increase urination to get rid of excess fluid from the body

Some people with heart failure

Breast tenderness (males and females)

Loss of libido (in males)

Eplerenone (Inspra) 

Spironolactone (Aldactone)

Not usually

Less commonly used blood pressure medications

Several other types of medications are less commonly used to lower blood pressure. They work by relaxing blood vessels. These medications typically have more side effects or interact with lots of other medications. 

Examples include:

Combination blood pressure medications

Two or more blood pressure medications are sometimes combined into a single pill. These combination products make it easier to take multiple blood pressure medications at once. 

The drawback? This can make it harder to adjust the dose of either medication by itself.

Examples of popular combination blood pressure medications are:

Frequently asked questions

Do generic blood pressure medications work as well as brand names?

Generic blood pressure medications may differ in shape, color, and size. But they work just as well as brand-name medications. Generic and brand-name blood pressure medications that contain the same ingredient are bioequivalent. This means they work exactly the same in terms of the dose, strength, and performance in the body.

What is the best blood pressure pill with the least side effects?

Low-dose thiazide diuretics are found to most effectively reduce blood pressure and its complications — like heart attack, stroke, and death — with few side effects. They’re a good first-choice medication for many people when they’re first diagnosed with hypertension. The best choice for you will depend on many factors like your medical history and current medications. 

Can drinking lots of water lower blood pressure?

Staying hydrated is important for your overall health. Drinking water may help reduce the risk of high blood pressure. But there isn’t strong evidence that drinking water can lower blood pressure that’s already high. In fact, in some cases drinking too much water can lead to more complications and may even increase your blood pressure

Talk to a healthcare professional if you’re considering increasing your water intake in an attempt to lower your blood pressure.

The bottom line

There are many options when it comes to blood pressure medications. A healthcare professional will decide what’s best for you based on a number of factors. These include your age, medical history, and other medications you may be taking. Cost may also be a factor. 

Fortunately, many blood pressure medications have low-cost generic options available. Talk to your prescriber about all of your treatment options.  

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Why trust our experts?

Kevin Hwang, MD, MPH
Kevin Hwang, MD, MPH is an internal medicine physician, primary care provider and associate professor at UTHealth McGovern Medical School in Houston, Texas. He teaches residents and students, conducts research and quality improvement projects, and serves as medical director of the UT Physicians General Internal Medicine Center.
Karla Robinson, MD
Karla Robinson, MD, is a medical editor for GoodRx. She is a licensed, board-certified family physician with almost 20 years of experience in health through varied clinical, administrative, and educational roles.
Frank Schwalbe, MD
Reviewed by:
Frank Schwalbe, MD
Frank Schwalbe, MD, is an assistant professor of anesthesiology at the Yale School of Medicine. He has practiced anesthesiology for 30 years.
View All References (3)

Nachawati, D., et al. (2025). Alpha-blockers. StatPearls.

Wong, G. W. K., et al. (2015). Blood pressure lowering efficacy of dual alpha and beta blockers for primary hypertension. Cochrane Database of Systematic Reviews.

Wright, J. M., et al. (2018). First‐line drugs for hypertension. Cochrane Database of Systematic Reviews.

GoodRx Health has strict sourcing policies and relies on primary sources such as medical organizations, governmental agencies, academic institutions, and peer-reviewed scientific journals. Learn more about how we ensure our content is accurate, thorough, and unbiased by reading our editorial guidelines.

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