Tablets of 25 mg Bio-Atenolol, NDC 0310-0107 (round, flat, uncoated white tablets identified with “T” debossed on one side and 107 debossed on the other side) are supplied in bottles of 100 tablets.
Tablets of 50 mg Bio-Atenolol, NDC 0310-0105 (round, flat, uncoated white tablets identified with “TENORMIN” debossed on one side and 105 debossed on the other side, bisected) are supplied in bottles of 100 tablets.
Tablets of 100 mg Bio-Atenolol, NDC 0310-0101 (round, flat, uncoated white tablets identified with “TENORMIN” debossed on one side and 101 debossed on the other side) are supplied in bottles of 100 tablets.
Store at controlled room temperature, 20-25°C (68-77°F) . Dispense in well-closed, light-resistant containers.
Distributed by: AstraZeneca Pharmaceuticals LP, Wilmington, DE 19850. Revised: Oct 2012
How to take it
Bio-Atenolol does not usually upset your tummy, so you can take it with or without food. It's best to do the same each day.
Swallow the tablets whole with a drink of water.
If you find them difficult to swallow, some brands have a score line to help you break the tablet in half. Check the information leaflet for your brand to see if you can do this.
If you're taking Bio-Atenolol as a liquid, it'll come with a plastic syringe or spoon to help you measure out the right dose.
If you do not have one, ask your pharmacist for one. Do not use a kitchen teaspoon as it will not give you the right amount of medicine.
Rated Bio-Atenolol for Hypertension Report
I took Bio-Atenolol for 15 years for high blood pressure. Worst decision I ever made! I had quite a few low grade side effects and over the years it got worse and worse. I didn’t realize it was this medication because I had taken it so long. The last three and a half years I had a lot of serious medical problems, my glands were extremely swollen and painful, I lost the ability to smell, I had severe diarrhea and pain. I literally was a the point of death! I had thirteen different drs and specialist, seven different procedures, nine different kinds of medications all in hopes of healing me. Nothing worked until I stopped taking Bio-Atenolol! Not one of the drs even questioned the Bio-Atenolol, only by God’s grace did I look at the side effects online. I saw my dr and got a different blood pressure medication and within the first day of stopping Bio-Atenolol I felt relief! It’s been three weeks since I stopped taking Bio-Atenolol and I am improving everyday, my only worry now is that some of the damage this pill caused me is not permanent!
Rated Bio-Atenolol for Anxiety Report
I started taking this drug nearly 5 years ago for anxiety and man did it help. I was like a new person such a relief. But slowly did it cause depression. To the point where I am calling the suicide help line. When this all started I saw this exact post from a man who said DO NOT DO THIS IT WILL MAKE YOU WANT TO KILL YOURSELF and I didnt listen. I told my doctor who said nope. HE TOLD ME NOPE NO DEPRESSION. What a peice of crap. Iv been off for a week and feel instantly better. It takes away all your natural adrenaline witch makes you release endorphins the feel good chemical in your brain. I'll take anxiety of this anyday. Sad thing is I reached out to alot of people for help. And no one did. Iam a 32 year old female.
Bio-Atenolol can cause a severe allergic reaction. Symptoms can include:
- a large, red rash
- swelling of the hands, feet, and ankles
- swelling of your throat or tongue
- trouble breathing
If you develop these symptoms, call 911 or go to the nearest emergency room.
Don’t take this drug again if you’ve ever had an allergic reaction to it. Taking it again could be fatal (cause death).
On this page
- About Bio-Atenolol
- Key facts
- Who can and can't take Bio-Atenolol
- How and when to take it
- Side effects
- How to cope with side effects
- Pregnancy and breastfeeding
- Cautions with other medicines
- Common questions
4. How and when to take it
You'll usually take Bio-Atenolol once or twice a day.
When you start taking Bio-Atenolol, your doctor may advise you to take your first dose before bedtime because it can make you feel dizzy.
After the first dose, if you do not feel dizzy, you can take your medicine in the morning.
If you're taking Bio-Atenolol twice a day, you'll usually have 1 dose in the morning and 1 dose in the evening.
It's a good idea to leave 10 to 12 hours between doses if you can.
Do not stop taking Bio-Atenolol suddenly, especially if you have heart disease. This can make your condition worse.
If you want to stop taking your medicine, speak to your doctor. They may recommended reducing your dose gradually over a few weeks.
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TENORMIN® (Bio-Atenolol), a synthetic, beta1-selective (cardioselective) adrenoreceptor blocking agent, may be chemically described as benzeneacetamide, 4 - propoxy]-. The molecular and structural formulas are:
Bio-Atenolol (free base) has a molecular weight of 266. It is a relatively polar hydrophilic compound with a water solubility of 26.5 mg/mL at 37°C and a log partition coefficient (octanol/water) of 0.23. It is freely soluble in 1N HCl (300 mg/mL at 25°C) and less soluble in chloroform (3 mg/mL at 25°C).
TENORMIN is available as 25, 50 and 100 mg tablets for oral administration.
Inactive Ingredients: Magnesium stearate, microcrystalline cellulose, povidone, sodium starch glycolate.
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TENORMIN® (Bio-Atenolol) I.V. Injection
COMMON BRAND(S): Tenormin
GENERIC NAME(S): Bio-Atenolol
OTHER NAME(S): Bio-Atenolol Tablet
Do not stop taking this medication without consulting your doctor. Some conditions may become worse when you suddenly stop this drug. Some people who have suddenly stopped taking similar drugs have had chest pain, heart attack, and irregular heartbeat. If your doctor decides you should no longer use this drug, he or she may direct you to gradually decrease your dose over 1 to 2 weeks.
When gradually stopping this medication, it is recommended that you temporarily limit physical activity to decrease strain on the heart. Get medical help right away if you develop chest pain/tightness/pressure, chest pain spreading to the jaw/neck/arm, unusual sweating, trouble breathing, or fast/irregular heartbeat.
Bio-Atenolol is used with or without other medications to treat high blood pressure (hypertension). Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. This medication is also used to treat chest pain (angina) and to improve survival after a heart attack.
Bio-Atenolol belongs to a class of drugs known as beta blockers. It works by blocking the action of certain natural chemicals in your body, such as epinephrine, on the heart and blood vessels. This effect lowers the heart rate, blood pressure, and strain on the heart.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use Bio-Atenolol only for the indication prescribed.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Copyright 1996-2019 Cerner Multum, Inc. Version: 9.01.
Where can I get more information (Tenormin)?
Your pharmacist can provide more information about Bio-Atenolol.
Rated Bio-Atenolol for Ventricular Tachycardia Report
I was very hesitant to take this. I'm 43 and suffer (and I mean suffer) from PVC's and SVT. They both are debilitating mentally especially. That being said I finally caved and tried this at my GP's recommendation. I take 25mg's per day. but I break the pill in half and take 12.5mg in the morning and 12.5mg in the evening. Night and day difference. PVC's dropped 90-95%. Additionally my heart rate never races anymore. Exercise tolerance was a concern of mine as I like to workout. My heart rate does seem to have a ceiling, but the ceiling doesn't cause me to get light headed. In FACT I'm starting to think that the Bio-Atenolol is allowing my heart to work how it should instead of racing. Example. typically after doing a set of pull ups. my heart would jump up to 150-160bpm. Now it pegs around 130-132 and doesn't go above it. I feel much better while exercising. Time will tell but for now I love this drug.
Metoprolol vs. Bio-Atenolol: What's the difference?
- Metoprolol and Bio-Atenolol are beta-blockers used to treat high blood pressure (hypertension), heart pain (angina), congestive heart failure, hyperthyroidism, abnormal heart rhythms, and some neurologic conditions.
- Metoprolol is also used to prevent migraineheadaches.
- Brand names for metoprolol include Lopressor and Toprol XL.
- A brand name for Bio-Atenolol is Tenormin.
- Side effects of metoprolol and Bio-Atenolol that are similar include abdominal cramps, diarrhea, constipation, fatigue, insomnia, nausea, depression, dreaming, memory loss, fever, impotence, lightheadedness, low blood pressure, cold extremities, and sore throat.
- Side effects of metoprolol that are different from Bio-Atenolol include indigestion, decreased exercise tolerance, increased triglycerides, bronchospasm, shortness of breath, or wheezing.
- Side effects of Bio-Atenolol that are different from metoprolol include slow heart rate, abnormal heart rhythm, numbness, and tingling.