Your doctor says you need blood pressure medication — but which one? There are dozens of options across multiple drug classes, each with different mechanisms, side effects, and benefits. hypertension.md compares them all so you can understand your prescription and ask informed questions.
Who Is This For?
This hypertension.md medication guide is for:
- People newly prescribed blood pressure medication who want to understand their options
- Patients experiencing side effects and wondering about alternatives
- Anyone taking multiple blood pressure medications and wanting to understand why
- People comparing different medications their doctor has discussed
- Healthcare consumers who want to be informed participants in their treatment
The Major Classes of Blood Pressure Medications
ACE Inhibitors (-pril drugs)
Examples: lisinopril, enalapril, ramipril, benazepril
How they work: Block the enzyme that produces angiotensin II, a hormone that constricts blood vessels.
Pros: Well-studied, protective for kidneys (especially in diabetics), reduce heart failure risk, generic and affordable.
Cons: Dry cough in 10-15% of patients (most common reason for switching). Rare but serious risk of angioedema (throat swelling). Cannot be used during pregnancy. Less effective as monotherapy in Black patients.
Recall note: On August 24, 2026, Hikma Pharmaceuticals recalled ramipril 10 mg capsules made for Exelan Pharmaceuticals (lots AC5470A and AC5470B, 28,354 bottles) after testing found an impurity above specification. The FDA classified it as a Class II recall (FDA Enforcement Report D-0831-2026, September 2, 2026). Check the lot number on your bottle and ask your pharmacist before you stop any medication.
Best for: Diabetes, chronic kidney disease, heart failure, post-heart attack. First-line for many patients under 55.
ARBs (-sartan drugs)
Examples: losartan, valsartan, olmesartan, irbesartan, telmisartan
How they work: Block angiotensin II receptors directly (downstream of ACE inhibitors).
Pros: Similar benefits to ACE inhibitors without the cough. Well-tolerated. Good kidney protection.
Cons: Slightly more expensive than ACE inhibitors (though most are now generic). Same angioedema risk (lower). Cannot combine with ACE inhibitors. Cannot use during pregnancy.
Best for: Patients who need ACE inhibitor benefits but can't tolerate the cough.
Calcium Channel Blockers (CCBs)
Examples: amlodipine, nifedipine (dihydropyridines); diltiazem, verapamil (non-dihydropyridines)
How they work: Relax blood vessels by blocking calcium entry into smooth muscle cells.
Pros: Very effective. Work well across all racial groups. Amlodipine is once-daily and highly effective. Good for elderly patients.
Cons: Ankle swelling (peripheral edema) is common with amlodipine — the #1 side effect. Constipation with verapamil. Gum swelling (rare). Non-dihydropyridines can slow heart rate.
Best for: Black patients (more effective than ACE inhibitors as monotherapy), elderly, angina (chest pain), isolated systolic hypertension. First-line for many patients over 55.
Thiazide Diuretics
Examples: hydrochlorothiazide (HCTZ), chlorthalidone, indapamide
How they work: Increase sodium and water excretion by the kidneys, reducing blood volume.
Pros: Very affordable. Long track record. Chlorthalidone may be superior to HCTZ (longer-acting, more outcome data). Small dose goes a long way.
Cons: Increased urination (especially when starting). Can raise blood sugar and uric acid. May deplete potassium and magnesium — requires monitoring. Photosensitivity.
Best for: First-line option, especially effective in Black patients and elderly. Often used in combination with other classes.
Beta-Blockers
Examples: metoprolol, atenolol, carvedilol, bisoprolol, propranolol
How they work: Slow heart rate and reduce the force of heart contractions, lowering cardiac output.
Pros: Essential for heart failure and post-heart attack. Control heart rate in addition to blood pressure. Help with anxiety-related blood pressure spikes and tremor.
Cons: Fatigue and exercise intolerance are common. Can cause weight gain, cold extremities, sexual dysfunction, and depression. Not recommended as first-line for uncomplicated hypertension (less effective at preventing stroke compared to other classes).
Best for: Heart failure, post-heart attack, atrial fibrillation, migraine prevention. Not ideal as sole blood pressure medication.
Aldosterone Synthase Inhibitors (new class, approved 2026)
Examples: baxdrostat (Baxfendy)
How they work: Block aldosterone synthase, the enzyme that makes aldosterone, so the body holds on to less sodium and water. This is a different target from every class above.
Status: The FDA approved baxdrostat in May 2026 as the first aldosterone synthase inhibitor for high blood pressure (American College of Cardiology, May 19, 2026). It is approved as an add-on, not a first drug — for adults whose pressure stays high on other medications. AstraZeneca began US shipments in June 2026. A second drug in this class, lorundrostat, is under FDA review as an add-on treatment for hypertension, with a decision date of December 22, 2026 (Mineralys Therapeutics, March 9, 2026).
Evidence: In the phase 3 BaxHTN trial, adding baxdrostat to existing therapy lowered seated systolic blood pressure by 9.8 mmHg (2 mg dose) and 8.7 mmHg (1 mg dose) more than placebo at 12 weeks (Flack et al., NEJM, 2025).
Cons: Because it lowers aldosterone, it can raise blood potassium and lower blood sodium. Patients at higher risk of those problems start at 1 mg daily and need lab monitoring. It is brand-only, so it costs far more than the generics listed below.
Best for: Resistant hypertension — blood pressure still above goal on three or more drugs, including a diuretic.
Why Most People End Up on Multiple Medications
hypertension.md explains a common reality: about 50-60% of people with hypertension need two or more medications to reach their blood pressure goal. This isn't a failure — it's pharmacology. Each class lowers blood pressure by about 8-12 mmHg systolic. If your starting blood pressure is 165/95 and your goal is below 130/80, one drug often isn't enough.
Common effective combinations:
- ACE inhibitor or ARB + calcium channel blocker (most recommended first-line combo)
- ACE inhibitor or ARB + thiazide diuretic
- Calcium channel blocker + thiazide diuretic
Combinations to avoid: ACE inhibitor + ARB (increased side effects without better outcomes).
Side Effects: The Real Talk
Side effects are the #1 reason people stop taking blood pressure medication — and uncontrolled hypertension is far more dangerous than medication side effects. The benefits of treatment keep growing: in the CRHCP trial of 33,995 adults, presented at ESC Congress 2026, intensive blood pressure control (below 130/80) cut dementia risk by 15% over 7 years (European Society of Cardiology, August 30, 2026). Taking the pills consistently matters just as much. In a pooled analysis of 91,339 patients from 9 trials, presented at the same congress, people who took at least 80% of their doses had 11% fewer major cardiovascular events, while people below 80% got no significant benefit (European Society of Cardiology, August 27, 2026). hypertension.md urges: if a side effect bothers you, tell your doctor so they can switch to a different medication. Don't just stop taking it silently.
The most common side effects by class:
- ACE inhibitors: Dry cough (10-15%), dizziness, elevated potassium
- ARBs: Dizziness, elevated potassium (less common than ACEi)
- CCBs: Ankle swelling, headache, flushing, constipation (verapamil)
- Thiazides: Frequent urination, dizziness, low potassium, elevated blood sugar
- Beta-blockers: Fatigue, cold hands/feet, weight gain, sexual dysfunction, exercise intolerance
Cost Comparison in 2026
Most blood pressure medications are available as generics:
- Lisinopril: $4-10/month
- Amlodipine: $4-10/month
- Losartan: $4-15/month
- HCTZ: $4-8/month
- Metoprolol: $4-10/month
Blood pressure medication is among the most affordable chronic disease treatments available. Cost should rarely be a barrier — discuss $4 generic options with your pharmacist.