Have you recently been diagnosed with hypertension, or are you wondering what the best medicine for hypertension is? Managing high blood pressure involves more than simply taking a tablet. Effective hypertension management combines accurate blood pressure measurement, healthy lifestyle changes, appropriate medication when indicated, regular monitoring, and treatment of other cardiovascular risk factors.

There is no single “best” blood pressure medicine for everyone. The right treatment depends on your blood pressure level, cardiovascular risk, kidney function, diabetes status, age, pregnancy status, other medical conditions, current medicines, and how well you tolerate treatment.

In this guide, we’ll explain what hypertension is, its risk factors, lifestyle measures, the major classes of blood pressure medicines, and how healthcare professionals choose treatment.

Important: This article is for educational purposes and does not replace an assessment by a qualified healthcare professional. Do not start, stop, or change blood pressure medication without medical advice.

What Is Hypertension?

Hypertension is a condition in which blood pressure remains abnormally high over time.

Blood pressure is the force of blood pushing against the walls of your arteries as the heart pumps blood around the body. It is recorded as two numbers:

• Systolic blood pressure (SBP): the pressure when the heart contracts.

• Diastolic blood pressure (DBP): the pressure when the heart relaxes between beats.

The diagnosis of hypertension should not usually be based on a single elevated reading. Blood pressure should be measured correctly and, when appropriate, confirmed through repeated office measurements or out-of-office monitoring such as home or ambulatory blood pressure monitoring.

The 2024 European Society of Cardiology (ESC) guideline continues to define hypertension as office blood pressure ≥140/90 mmHg, while also introducing an “elevated blood pressure” category of 120–139/70–89 mmHg.

Blood Pressure Categories

Blood pressure classifications can differ between guidelines and healthcare systems. This is important because terms such as “normal,” “elevated,” and “hypertension” are not identical across every guideline.

Under the 2024 ESC framework:

Your healthcare professional may use a different classification depending on the guideline followed in your country.

More importantly, treatment decisions should consider repeated blood pressure measurements and the person's overall cardiovascular risk, rather than one isolated reading.

Why Is Hypertension Called a Silent Killer?

Hypertension is often called a “silent killer” because many people have no obvious symptoms, even when their blood pressure is significantly elevated.

A person can feel completely well while high blood pressure is gradually damaging the cardiovascular system.

If hypertension remains uncontrolled, it can increase the risk of:

• Stroke

• Heart attack

• Heart failure

• Chronic kidney disease

• Other cardiovascular complications

• Damage to blood vessels and other organs

This is why regular blood pressure checks and appropriate treatment are important.

Causes and Risk Factors of Hypertension

Hypertension can be broadly classified as primary (essential) hypertension or secondary hypertension.

Primary Hypertension

Primary hypertension does not have one identifiable cause. It develops through a combination of genetic, environmental, lifestyle, and other factors.

Risk factors include:

• Family history of hypertension

• Increasing age

• Overweight or obesity

• High dietary sodium intake

• Physical inactivity

• Excessive alcohol consumption

• Tobacco use

• Poor sleep

• Certain dietary patterns

• Some genetic factors

Secondary Hypertension

Secondary hypertension occurs when another condition or medication contributes to high blood pressure.

Possible causes include:

• Chronic kidney disease

• Obstructive sleep apnea

• Certain endocrine disorders

• Renal artery disease

• Some medications

• Certain substances

Medicines that can contribute to increased blood pressure in some people include certain non-steroidal anti-inflammatory drugs (NSAIDs), corticosteroids, and some hormonal contraceptives.

If blood pressure becomes difficult to control despite appropriate treatment, healthcare professionals may investigate possible secondary causes.

How Is Hypertension Managed?

The goal of hypertension management is not simply to make a blood pressure reading look better. Treatment aims to reduce the person's long-term risk of cardiovascular disease and other complications.

Management generally involves:

1. Accurate diagnosis and blood pressure assessment

2. Lifestyle modification

3. Cardiovascular risk assessment

4. Medication when indicated

5. Regular monitoring and follow-up

6. Treatment of associated conditions and risk factors

The WHO recommends evidence-based pharmacological treatment for adults who meet criteria for medication and emphasizes follow-up and achievement of appropriate blood pressure targets.

Lifestyle Changes for Hypertension

Lifestyle modification is an important part of hypertension management, whether or not medication is prescribed.

1. Reduce Sodium Intake

Eating too much sodium can contribute to elevated blood pressure.

Try to reduce your intake of highly processed and salty foods and follow a balanced eating pattern rich in vegetables, fruits, whole grains, and other nutrient-dense foods.

2. Exercise Regularly

Regular physical activity can help lower blood pressure and improve overall cardiovascular health.

Adults should follow appropriate physical-activity recommendations based on their age, health status, and physical ability.

3. Maintain a Healthy Weight

If you are overweight or obese, gradual weight reduction can help improve blood pressure and cardiovascular health.

4. Stop Smoking

Smoking damages blood vessels and increases cardiovascular risk. Quitting smoking is one of the most important steps for protecting cardiovascular health.

5. Limit Alcohol Consumption

Excessive alcohol intake can contribute to elevated blood pressure. Reducing alcohol consumption can therefore form part of a comprehensive hypertension management plan.

6. Get Adequate Sleep

Poor sleep and sleep disorders can negatively affect cardiovascular health. People with symptoms of obstructive sleep apnea may require medical assessment.

7. Follow Your Treatment Plan

Lifestyle changes do not mean that prescribed medication should be stopped. Some people require medication even when they maintain healthy habits.

Medicines Used to Treat Hypertension

There are several classes of antihypertensive medicines.

The major classes commonly used in hypertension management include:

• ACE inhibitors

• Angiotensin II receptor blockers (ARBs)

• Calcium channel blockers (CCBs)

• Thiazide-type or thiazide-like diuretics

• Beta-blockers in appropriate clinical situations

• Other medicines for specific situations or resistant hypertension

WHO guidance supports the use of several major drug classes and provides recommendations concerning monotherapy, combination therapy, and single-pill combinations.

1. ACE Inhibitors

ACE inhibitors reduce the production of angiotensin II, a substance that promotes vasoconstriction and contributes to increased blood pressure.

Examples include:

• Lisinopril

• Enalapril

• Ramipril

• Perindopril

ACE inhibitors can be particularly useful in certain patients with conditions such as chronic kidney disease with albuminuria or heart failure.

Common adverse effects include:

• Dry, persistent cough

• Dizziness

• Increased potassium levels

• Changes in kidney function

A rare but potentially serious adverse effect is angioedema.

ACE inhibitors should not be used during pregnancy because of the risk of fetal harm.

Importantly, diabetes or kidney disease does not automatically make ACE inhibitors contraindicated. In fact, ACE inhibitors may be beneficial for selected patients with diabetes or chronic kidney disease. The decision depends on the individual clinical situation and requires appropriate monitoring.

2. Angiotensin II Receptor Blockers (ARBs)

ARBs block the action of angiotensin II at the angiotensin II type 1 receptor.

Examples include:

• Losartan

• Valsartan

• Telmisartan

• Olmesartan

ARBs are commonly used when an ACE inhibitor is not tolerated, particularly when troublesome ACE-inhibitor-associated cough occurs.

Possible adverse effects include:

• Dizziness

• Increased potassium levels

• Changes in kidney function

Like ACE inhibitors, ARBs should not be used during pregnancy.

ACE inhibitors and ARBs should generally not be combined for routine hypertension treatment because combining renin-angiotensin system blockers increases the risk of adverse effects without providing a routine benefit that justifies the combination.

3. Calcium Channel Blockers

Calcium channel blockers reduce calcium entry into vascular smooth muscle and/or cardiac muscle, depending on the specific drug.

Dihydropyridine calcium channel blockers commonly used for hypertension include:

• Amlodipine

• Felodipine

• Nifedipine

Common adverse effects include:

• Ankle or peripheral edema

• Headache

• Flushing

• Dizziness

Constipation is particularly associated with some non-dihydropyridine calcium channel blockers, such as verapamil.

Grapefruit interactions are drug-specific, rather than a universal feature of all calcium channel blockers. Patients should check the specific medicine they are taking and follow the advice of their pharmacist or prescriber.

4. Thiazide-Type and Thiazide-Like Diuretics

These medicines increase the excretion of sodium and water, helping reduce blood pressure.

Examples include:

• Hydrochlorothiazide

• Chlorthalidone

• Indapamide

Potential adverse effects include:

• Low sodium levels

• Low potassium levels

• Increased uric acid

• Dizziness

• Changes in glucose levels in some patients

Thiazide-type and thiazide-like diuretics are important medicines in hypertension management and are different from loop diuretics such as furosemide.

5. Beta-Blockers

Beta-blockers reduce the effects of sympathetic stimulation on the heart and can decrease heart rate and cardiac workload.

Examples include:

• Bisoprolol

• Metoprolol

• Atenolol

• Carvedilol

Beta-blockers are useful in selected patients, particularly when hypertension occurs alongside another indication such as certain forms of heart disease, heart failure, or some arrhythmias.

They are not generally the preferred first-line treatment for uncomplicated hypertension when there is no compelling indication for their use.

Possible adverse effects include:

• Fatigue

• Dizziness

• Slow heart rate

• Cold hands and feet

• Sexual dysfunction in some patients

Some beta-blockers can also affect glucose regulation and may mask certain symptoms of hypoglycemia.

Other Medicines Used in Hypertension

Some patients require additional medicines when blood pressure remains uncontrolled or when a specific clinical condition makes another drug appropriate.

These include:

Mineralocorticoid Receptor Antagonists

Examples include:

• Spironolactone

• Eplerenone

Spironolactone is particularly important in resistant hypertension and is also used for other cardiovascular conditions.

It can increase potassium levels and may cause gynecomastia in some patients.

Alpha-Blockers

Examples include:

• Doxazosin

• Prazosin

These may be used in selected patients, sometimes when hypertension occurs alongside benign prostatic hyperplasia.

Centrally Acting Medicines

Examples include:

• Clonidine

• Methyldopa

These are not generally preferred routine first-line medicines for uncomplicated hypertension. Methyldopa has an established role in pregnancy in some treatment settings.

Direct Vasodilators

Examples include:

• Hydralazine

• Minoxidil

These are generally reserved for selected situations and are often used alongside other medicines because of their adverse-effect profiles and compensatory physiological responses.

What Is the Best Medicine for Hypertension?

There is no single best blood pressure medicine for everyone.

For many adults requiring pharmacological treatment, the commonly used first-line classes include:

• ACE inhibitors or ARBs

• Calcium channel blockers

• Thiazide-type or thiazide-like diuretics

The best option depends on the patient's individual characteristics.

For example:

These are examples rather than prescriptions. A healthcare professional should select treatment based on the patient's complete clinical picture.

Why Do Some People Need More Than One Blood Pressure Medicine?

Hypertension often involves several physiological mechanisms. A single medicine may therefore not reduce blood pressure sufficiently.

Combination treatment can allow medicines with complementary mechanisms to be used together.

WHO guidance supports combination treatment when appropriate, including single-pill combinations that can simplify treatment and potentially improve adherence.

For example, a healthcare professional may combine:

• An ACE inhibitor or ARB + calcium channel blocker

• An ACE inhibitor or ARB + thiazide-type diuretic

• Other combinations when clinically appropriate

The exact combination and dose should be individualized.

Common Blood Pressure Medicines

Some commonly encountered antihypertensive medicines include:

• Amlodipine — calcium channel blocker

• Lisinopril — ACE inhibitor

• Losartan — ARB

• Valsartan — ARB

• Hydrochlorothiazide — thiazide diuretic

• Indapamide — thiazide-like diuretic

• Bisoprolol — beta-blocker

• Metoprolol — beta-blocker

• Spironolactone — mineralocorticoid receptor antagonist

• Clonidine — centrally acting antihypertensive

The availability, preferred choices, and prescribing practices may vary between countries and clinical settings.

Why Furosemide Is Not Usually the First Choice for Simple Hypertension

Furosemide is a loop diuretic. Although it can lower blood pressure, it is not usually the routine first-choice diuretic for uncomplicated hypertension.

It is particularly useful when fluid overload or conditions such as heart failure or significant renal impairment require loop diuretic therapy.

This distinction is important because not every diuretic has the same role in hypertension management.

What Happens If Hypertension Is Not Treated?

Untreated or poorly controlled hypertension can progressively increase the risk of serious cardiovascular and renal complications.

Possible complications include:

• Stroke

• Heart attack

• Heart failure

• Chronic kidney disease

• Cardiovascular disease

• Damage to blood vessels and other organs

The WHO emphasizes that controlling blood pressure can reduce the risk of stroke, heart disease, kidney disease, and other complications.

Taking Blood Pressure Medicines Safely

If you have been prescribed antihypertensive medication:

• Take it exactly as prescribed.

• Try to take it at the same time each day.

• Monitor your blood pressure when advised.

• Keep scheduled follow-up appointments.

• Tell your healthcare professional about all medicines and supplements you take.

• Do not stop treatment abruptly without medical advice.

• Ask what to do if you miss a dose.

• Report troublesome or unusual adverse effects.

Some medicines, particularly certain centrally acting drugs and beta-blockers, may cause problems if discontinued abruptly. Your prescriber should guide you on how treatment should be changed or stopped.

Final Thoughts

Hypertension management is more than simply choosing a blood pressure tablet.

The most appropriate treatment depends on the individual's blood pressure, cardiovascular risk, kidney function, other medical conditions, current medicines, pregnancy status, and response to treatment.

Lifestyle changes remain an important part of management, but many people also require antihypertensive medication to achieve adequate blood pressure control.

The major medicine classes used in hypertension include ACE inhibitors, ARBs, calcium channel blockers, and thiazide-type or thiazide-like diuretics. Other medicines, including beta-blockers, spironolactone, alpha-blockers, centrally acting medicines, and vasodilators, have important roles in selected patients.

If you have recently been diagnosed with hypertension, don't focus only on finding the “strongest” or “best” drug. The goal is to find an evidence-based treatment that is appropriate for your individual risk factors, effective at controlling your blood pressure, and well tolerated.

Always speak with your doctor or pharmacist before starting, stopping, or changing your blood pressure medication.

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