What is atenolol used for?

Atenolol is FDA-approved to treat high blood pressure and chest pain (angina), and to improve survival after a heart attack. It works by slowing the heart rate and lowering blood pressure. Your provider will determine whether it is appropriate for your condition.

Is atenolol the same as Tenormin?

Yes. Tenormin is the brand name and atenolol is the generic name for the same medication. Both contain the same active ingredient and are held to the same FDA standards.

Do I need a prescription for atenolol?

Yes. Atenolol is a prescription-only medication in the United States. A licensed provider must review your health information and issue a valid prescription before we can dispense it.

How does ordering and shipping work?

After you place your order and provide your prescription (or complete a provider review where available), our pharmacy team verifies everything before dispensing. Your medication then ships from a licensed U.S. pharmacy in discreet packaging.

How should I take atenolol 100mg?

Most adults take atenolol once daily, at the same time each day, with or without food, exactly as prescribed. Do not stop taking it suddenly, as this can worsen heart symptoms; talk to your provider before making any changes.

What should I avoid while taking atenolol?

Avoid stopping the medication abruptly and check with your provider before combining it with other heart-rate-lowering drugs or decongestants. Limit alcohol, which can increase dizziness. Tell your provider about all medications and supplements you take.

What are the most common side effects of atenolol?

The most common side effects include tiredness, dizziness, slow heart rate, cold hands and feet, and nausea. Many are mild and may improve over time, but contact your provider if side effects persist or worsen.

Atenolol 100mg

Name: Atenolol 100mg
Brand: All Family Pharmacy
SKU: atenolol-100mg
Availability: InStock

Generic For: Tenormin

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Atenolol 100mg (brand name Tenormin) is a beta-blocker used to treat high blood pressure and chest pain (angina), and to improve survival after a heart attack. After a licensed provider reviews your prescription, your order ships from a licensed U.S. pharmacy.

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Buy Atenolol 100mg Online (Tenormin)

A beta-blocker for high blood pressure, chest pain (angina), and heart attack recovery

Medically reviewed by David Paul Mackarey, RPh, Pharmacist-in-Charge

Atenolol 100mg Quick Facts

Drug class	Beta-blocker (beta-1 selective)
Treats	High blood pressure, angina, post-heart attack care
Form	Tablet
Typical dosing	Take 1 tablet by mouth daily.
Prescription required	Yes — prescription only

What Is Atenolol 100mg?

Atenolol is a beta-1 selective beta-blocker sold under the brand name Tenormin. It works by slowing the heart rate and reducing the force of the heart's contractions, which lowers blood pressure and reduces the heart's workload. Doctors prescribe atenolol for high blood pressure, chest pain caused by coronary artery disease (angina), and after a heart attack to reduce the risk of death. It is taken as a once-daily tablet and requires a valid prescription in the United States.

What Does Atenolol 100mg Treat?

High blood pressure (hypertension)
Chest pain from coronary artery disease (angina pectoris)
Heart attack recovery (acute myocardial infarction)
Reducing cardiovascular risk when combined with other blood pressure medicines

Atenolol 100mg Dosage

Hypertension: 50 mg by mouth once daily; may increase to 100 mg once daily after 1–2 weeks.
Angina: 50 mg by mouth once daily; may increase to 100 mg once daily after 1 week (max 200 mg daily).
Post-MI (long-term): 100 mg by mouth once daily or 50 mg twice daily.

Your prescriber will determine the dose and duration that are right for you. Always follow the directions on your prescription label.

Atenolol 100mg Side Effects

Common side effects

Tiredness or fatigue
Dizziness or lightheadedness
Slow heart rate
Cold hands and feet
Nausea
Depressed mood
Leg pain

Serious side effects

Stop taking this medication and seek medical attention right away if you experience:

Very slow or irregular heartbeat
Shortness of breath or wheezing
Swelling of the ankles, feet, or legs
Fainting
Signs of heart failure (sudden weight gain, worsening fatigue)
Severe allergic reaction (rash, swelling, trouble breathing)

Warnings & Interactions

Do not stop taking suddenly; abrupt withdrawal can worsen angina or trigger a heart attack
Contraindicated in sinus bradycardia, heart block greater than first degree, cardiogenic shock, and overt heart failure
Use caution with asthma or COPD; beta-blockers can worsen breathing problems
May mask symptoms of low blood sugar in people with diabetes
May mask signs of hyperthyroidism
Can cause fetal harm; tell your provider if you are pregnant or planning pregnancy
Use caution with calcium channel blockers (verapamil, diltiazem) and other heart-rate-lowering drugs

Tell your prescriber about all medications, supplements, and health conditions before starting atenolol 100mg.