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Tenormin 100 Tablet

Tablet
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Composition FOR Tenormin 100mg Tablet

Atenolol(100mg)

food interaction for Tenormin Tablet

alcohol interaction for Tenormin Tablet

pregnancy interaction for Tenormin Tablet

lactation interaction for Tenormin Tablet

food
alcohol
pregnancy
lactation
Tenormin 100 Tablet may be taken with or without food.
None
CAUTION
Consuming alcohol with Tenormin 100 Tablet does not usually cause any harmful side effects.
SAFE
Tenormin 100 Tablet is highly unsafe during pregnancy. It can cause serious harm to the unborn baby, including birth defects and pregnancy loss. Do not use this medicine if you are pregnant or planning to become pregnant.
UNSAFE
Tenormin 100 Tablet is unsafe to use during breastfeeding. Data suggests that the drug may cause toxicity to the baby.
UNSAFE

SALT INFORMATION FOR Tenormin 100mg Tablet

Atenolol(100mg)

Tenormin tablet uses

{med_name} is used in the treatment of Angina (heart-related chest pain), Arrhythmia and Hypertension (high blood pressure).

How tenormin tablet works

Tenormin 100 Tablet is a beta blocker that works specifically on the heart. It works by slowing down the heart rate and making the heart more efficient at pumping blood throughout the body.

Common side effects of tenormin tablet

Dizziness, Slow heart rate, Cold extremities, Fatigue, Gastrointestinal disturbance, Sleep disturbance, Increased transaminase level in blood, Headache, Low blood platelets, Purpura, Mood changes, Confusion, Psychosis, Hallucination, Paresthesia (tingling or pricking sensation), Visual disturbance, Impotence

SUBSTITUTES FOR Tenormin Tablet

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Expert advice FOR Tenormin Tablet

  • It may cause dizziness. If this happens to you, get up slowly when rising from a sitting or lying position.
  • It can hide symptoms of low blood sugar if you are diabetic. Monitor your blood sugar levels regularly.
  • Do not stop taking Atenolol suddenly as it can cause your blood pressure to rise suddenly, thereby increasing the risk of heart attack and stroke.

Frequently asked questions FOR Tenormin 100mg Tablet

Atenolol

Q. How many hours does Tenormin 100 Tablet take to reduce high blood pressure?
Usually, Tenormin 100 Tablet starts working within 3 hours, but it can take up to 2 weeks to reach its full effect. You may not feel any difference in blood pressure after taking the medicine, but this does not mean that the medicine is not working. It is important to keep taking your medicine in the prescribed dose and duration to get the maximum benefit of Tenormin 100 Tablet.
Q. Should I take Tenormin 100 Tablet in the morning or at night?
Tenormin 100 Tablet can be taken anytime in the morning or evening, usually prescribed once or twice daily. However, your very first dose of Tenormin 100 Tablet may make you feel dizzy, so it is better to take your first dose at bedtime. After that, if you do not feel dizzy, you may take it any time of the day. Follow the advice of your doctor. It is advised to take it at the same time each day so that you remember to take it and consistent levels of medicine are maintained in the body.
Q. What if I take more than the prescribed dose of Tenormin 100 Tablet?
If you take more than the prescribed dose, your heart rate may slow down and you may find it difficult to breathe. It can also cause dizziness and trembling. If you experience any of such side effects, seek immediate medical assistance. Avoid driving yourself to avoid any mishap. Get someone else to drive you or call for an ambulance. Take the Tenormin 100 Tablet packet or leaflet inside it, plus any remaining medicine, with you.
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Q. What are the most common side effects of Tenormin 100 Tablet?
The most common side effects of Tenormin 100 Tablet include cold extremities (feeling extreme cold), fatigue, slow heart rate, nausea, diarrhea and dizziness. However, these are usually mild and short-lived and not everyone will experience these side effects. But, if these do not resolve and bother you, consult your doctor to know about ways of coping up with them. Your doctor may also suggest ways of preventing them in future.
Q. Can Tenormin 100 Tablet cause dizziness? How do I prevent it?
Yes, Tenormin 100 Tablet can cause dizziness as a side effect. If this happens to you, you should sit or lie down until the symptoms pass. However, this is temporary and usually goes away as the treatment continues. It would be best to avoid alcohol while being on treatment, as it may worsen the dizziness.
Q. What should I tell my doctor before taking Tenormin 100 Tablet?
Tenormin 100 Tablet is not suitable for everyone. Therefore, it is advised to inform your doctor if you are allergic to Tenormin 100 Tablet or any of its ingredients before starting treatment. You must tell the doctor if you have low blood pressure or a slow heart rate, serious blood circulation problems in your limbs (such as Raynaud's phenomenon), which may make your fingers and toes tingle or turn pale or blue. In addition to that, inform your doctor if you are suffering or have suffered from metabolic acidosis (when there's too much acid in your blood), lung disease, or asthma. Let your doctor know about all the other medicines you are taking because they may affect, or be affected by, this medicine. Also, inform your doctor if you're trying to get pregnant, are already pregnant, or breastfeeding to prevent any harmful effects on the baby.
Q. What other lifestyle changes should I make while taking Tenormin 100 Tablet?
Lifestyle changes play a major role in keeping you healthy if you are taking Tenormin 100 Tablet. Avoid taking excess salt in your diet and find ways to reduce or manage stress in your life. Practice yoga or meditation, or take up a hobby. Ensure that you have a sound sleep every night, as this also helps to reduce stress levels and helps to keep your blood pressure normal. Stop smoking and alcohol consumption, as this helps in lowering your blood pressure and preventing heart problems. Exercise regularly and take a balanced diet that includes whole grains, fresh fruits, vegetables, and fat-free products. Consult your doctor if you need any further guidance to get the maximum benefit of Tenormin 100 Tablet and to keep yourself healthy.
Q. Can Tenormin 100 Tablet cause dizziness? How do I prevent it?
Yes, Tenormin 100 Tablet can cause dizziness as a side effect. If this happens to you, you should sit or lie down until the symptoms pass. However, this is temporary and usually goes away as the treatment continues. It would be best to avoid alcohol while being on treatment, as it may worsen the dizziness.

Content on this page was last updated on 18 January, 2026, by Dr. Mekhala Chandra (MD, MBBS)