Atenolol vs. Olmesartan
See how Atenolol and Olmesartan compare on approved uses, dosing, side effects, and cost.
Key Takeaways
Atenolol is a beta-blocker that slows the heart rate to lower blood pressure, while olmesartan is an ARB that relaxes blood vessels without affecting heart rate.
Both are taken once daily, but atenolol usually starts low and increases over time, while olmesartan can start at its typical dose right away.
Atenolol costs much less per month than olmesartan, though olmesartan carries a boxed pregnancy warning that atenolol does not.
Atenolol vs. Olmesartan Drug Summary
Atenolol
Atenolol is a beta-1 selective beta-blocker approved for hypertension, angina, and stable heart attack recovery. It works by slowing the heart rate and reducing the force of each heartbeat, taken as a once-daily oral tablet with a dose that may be increased over time.
Olmesartan
Olmesartan is an angiotensin II receptor blocker (ARB) approved to treat high blood pressure in adults and children age 6 and up. It relaxes blood vessels by blocking a hormone that narrows them, taken as a once-daily oral tablet without a titration schedule.
Atenolol vs. Olmesartan Side Effects
Atenolol
Olmesartan
Atenolol vs. Olmesartan Dosage
Atenolol
Olmesartan
| STAGE | DOSE | WHEN |
| Starting dose | 50 mg once daily | At the start |
| Maximum dose | 200 mg once daily | If needed |
| Dose changes | 2 increases | As tolerated |
| STAGE | DOSE | WHEN |
| Starting dose | 10 mg once daily | At the start |
| Maximum dose | 40 mg once daily | Week 3 onward |
| Dose changes | 2 increases | As tolerated |
Atenolol
| STAGE | DOSE | WHEN |
| Starting dose | 50 mg once daily | At the start |
| Maximum dose | 200 mg once daily | If needed |
| Dose changes | 2 increases | As tolerated |
Olmesartan
| STAGE | DOSE | WHEN |
| Starting dose | 10 mg once daily | At the start |
| Maximum dose | 40 mg once daily | Week 3 onward |
| Dose changes | 2 increases | As tolerated |
Atenolol vs. Olmesartan Indications
Atenolol
Atenolol treats high blood pressure, chest pain from angina, and helps stabilize patients recovering from a heart attack. Doctors also prescribe it off-label for migraine prevention and tremor control, though these uses are not FDA approved.
Hypertension
Angina pectoris
Acute myocardial infarction (stable)
Olmesartan
Olmesartan is approved solely for treating high blood pressure, either alone or combined with other antihypertensive medications. It is approved for both adults and children as young as 6, but not as an initial treatment in patients 75 or older or those with liver problems.
Hypertension in adults
Hypertension in children age 6 and up
Combination therapy with other antihypertensives
Atenolol vs. Olmesartan Pros and Cons
Atenolol
Atenolol has decades of real-world use and treats several heart conditions beyond blood pressure, making it useful for patients with angina or a recent heart attack. It is one of the least expensive blood pressure medications available, though it requires caution in people with breathing problems or a slow heart rate.
Pros
Also treats angina and post-heart-attack recovery
Decades of clinical use and safety data
Roughly $6 to $37 per month, much cheaper than olmesartan
Available off-label for migraine and tremor
Cons
Cannot be stopped abruptly without tapering
Unsafe for people with slow heart rate or heart block
Can mask symptoms of low blood sugar or overactive thyroid
Requires caution in asthma or COPD
Olmesartan
Olmesartan targets blood pressure specifically and tends to cause fewer effects on heart rate or mood than a beta-blocker like atenolol. It carries a boxed warning against use in pregnancy and requires monitoring of kidney function and potassium, and its monthly cost is notably higher.
Pros
Does not slow heart rate or mask low blood sugar
Simple once-daily dosing with no titration needed
Approved for children as young as 6
Fewer effects on mood or energy levels
Cons
Boxed warning against use during pregnancy
Risk of high potassium and reduced kidney function
Rare risk of severe chronic diarrhea (sprue-like enteropathy)
Roughly $115 to $205 per month, pricier than atenolol
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