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Atenolol is used to treat high blood pressure (hypertension). It helps slow down your heart rate and relax your blood vessels so the heart doesn’t have to pump as hard. Atenolol belongs to a class of medications known as beta blockers. The brand version is called Tenormin.
Please note: At this time, this medication is only prescribed as a refill at Dr. B.
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How Dr. B treats high blood pressure
Tell us about your condition with a $15 online consultation—no video call necessary.
A medical provider will review your information and prescribe treatment, if appropriate.
Pick up and pay for the medication at the pharmacy of your choice. Or, get it delivered.
About Atenolol (Generic Tenormin)
How does it work?
Atenolol belongs to a class of drugs known as beta-blockers. It works by blocking certain chemicals in the body that make the heart beat faster and harder. By doing this, Atenolol decreases the workload on the heart. This helps blood pressure go down.
What does it treat?
Atenolol is used to treat high blood pressure (hypertension) and chest pain (angina). It can also be used to reduce the risk of heart attack. Other uses for this medicine include migraine, alcohol withdrawal, irregular heartbeat and heart failure.
What forms does it come in?
This hypertension medicine comes as a tablet that’s taken by mouth. Take it at the same time every day, with or without food.
Atenolol vs. Tenormin
Atenolol and Tenormin are actually the same medication. Atenolol is the generic name, while Tenormin is a brand name for the same drug. They both work the same way to treat conditions like high blood pressure and chest pain.
How much will it cost?
Dr. B offers online consultations for $15—which is less than most copays. If a high blood pressure prescription is appropriate, your out-of-pocket medication cost will depend on your insurance and where you decide to get your prescription filled. With a drug discount card, prices for Atenolol 50 mg (30 tablets) start at $2.50.
* Prices shown with drug discount card applied. Price may differ depending on location.
Atenolol 50 mg (30 tablets)*
More High Blood Pressure (Hypertension) Prescription Refills
Looking for a different hypertension medication? Here are some options.
Atenolol (Generic Tenormin) prescription FAQ
What are the benefits of taking Atenolol (Generic Tenormin)?
- Lowers blood pressure
- Reduces risk of heart attack and stroke
- Prevents chest pain
- Improves blood flow to the heart
- Makes it easier for the heart to pump blood
Who should not take this medication?
- Those who are allergic to Atenolol
- People with a known allergy or severe reaction to beta-blockers
- People with diabetes
- Those who have kidney or liver disease
- People with severe circulation problems
- People with pheochromocytoma tumor
- People who have untreated hyperthyroidism
- Those with myasthenia gravis (muscle disorder)
- People who have slow heart rate (bradycardia)
- Those with low blood pressure (hypotension)
- People with severe heart conditions or heart failure
- People with sick sinus syndrome (a heart rhythm problem)
- Those who have second- or third-degree atrioventricular block (a heart rhythm problem)
- People with asthma, other breathing problems or history of serious lung diseases
- Individuals with a history of severe depression or certain mental health conditions
- Those with Raynaud's syndrome (a condition that causes the fingers and toes to become numb and cold)
- Pregnant women, breastfeeding or those planning to become pregnant
People with diabetes or thyroid issues also need to be careful while using this medication. Make sure your licensed provider is aware of your full medical history and any medications you’re using before starting this treatment.
How do you take this medication?
Take Atenolol by mouth, usually once daily, as directed by your licensed healthcare provider.
High blood pressure is a long-term (chronic) condition that can harm your organs. Medications for blood pressure are not a one-time cure. This medicine doesn't provide a complete cure for high blood pressure, so it's important to continue taking it, even if you start feeling better. If you stop taking it suddenly, this could cause dangerous problems, like heart attack or stroke. Follow your medical provider's instructions carefully.
What happens if I miss a dose?
If you miss a dose, just take it as soon as you remember. If it's close to the next scheduled dose, skip the missed one. Do not double the dose to catch up.
What happens if I take too much?
Taking too much of your beta blocker medication can cause symptoms like very slow heart rate, extreme weakness, hypoglycemia (low blood sugar) and difficulty breathing.
If you’ve taken too much Atenolol, call your health provider or local poison control center (800-222-1222) immediately.
Can I get Atenolol (Generic Tenormin) online?
If you need a refill or online prescription for hypertension medications, Dr. B can help. Fill out a short health questionnaire and a licensed medical provider will review your request. If a prescription is appropriate, they’ll send it to the pharmacy of your choice.
Medical information reviewed by Dr. Sudip Bose
Sudip Bose, MD is a world-leading emergency medicine physician, combat veteran, professor, and entrepreneur. With a wide variety of experience, Dr. Bose is focused on endeavors with large-scale health and educational impact. He founded The Battle Continues, a nonprofit assisting veterans with healthcare needs. Dr. Bose is also a clinical professor at Texas Tech and University of Illinois College of Medicine. He is a graduate of the honors program at Northwestern University, where he continued his medical school education at The Feinberg School of Medicine.
This medicine can cause side effects, especially as your body adjusts to taking beta blockers. You might notice side effects like:
- Cold hands and feet
- Low blood pressure
- Low heart rate
- Mental/mood changes or depression
- Decreased libido
- Erectile dysfunction
Talk to your health provider if your side effects are bothering you or if they don’t get better. If you have any severe side effects, like extreme fatigue, shortness of breath or swelling in your hands or feet, get emergency help right away.
Don’t drive until you know how this medicine affects you. Be extra careful in the first hours after taking your pill because of the risk of dizziness or lightheadedness.
Getting your blood tested regularly is important to monitor your overall health. It's a good idea to have your bloodwork checked, which may include tests for renal function, glucose levels or potassium levels in your blood. These routine checks help ensure you are in good health and catch any potential issues early.