Tenormin
Atenolol at 25mg, 50mg and 100mg, listed for hypertension, angina pectoris and arrhythmia. A beta-1 selective blocker, so the lungs are largely spared.
- Category
- Heart & Blood Pressure
- Active ingredient
- Atenolol
- Route
- Oral use
- Form
- Film-coated tablet
- Strengths
- 25 · 50 · 100mg
You will receive a quality generic equivalent, depending on stock.
No prescription needed: we place your order for Tenormin on your behalf.
- Conditions
- Hypertension · Angina Pectoris · Arrhythmia
- Therapeutic class
- Beta Blocker
- Pharmacological class
- Beta-1 Selective Adrenoceptor Antagonist
- Contraindications
- severe bradycardia; cardiogenic shock
- Precautions and warnings
- abrupt withdrawal may exacerbate angina; use with care in asthma
- Minor side effects
- cold extremities; fatigue; nausea
- Moderate side effects
- bradycardia; sleep disturbances
- Serious side effects
- heart block, requires immediate medical attention
- Dosage forms
- Film-coated tablet
- Administration route
- Oral use
- Originator
- AstraZeneca
- Onset time
- 1–2 hours
- Duration
- 24 hours
- Storage instructions
- Store below 25°C.
- Drug interactions
- verapamil
Patient summary
Atenolol at 25mg, 50mg and 100mg, listed for hypertension, angina pectoris and arrhythmia. A beta-1 selective blocker, so the lungs are largely spared.
Mechanism of action
Selective beta-1 receptor antagonist. It blocks adrenaline effects specifically on the heart, reducing heart rate and contractility, which helps lower blood pressure and oxygen demand.
Pregnancy and breastfeeding
Pregnancy: Consult your doctor regarding use. Breastfeeding: Confirm breastfeeding suitability with a qualified clinician or pharmacist before use.
Tenormin is a well-established medication containing atenolol, widely used to manage hypertension, angina pectoris and arrhythmia. This beta-blocker is supplied as a tablet in strengths of 25, 50 and 100mg. Patients often rely on this treatment for consistent cardiovascular support.
Buying Tenormin online
Ordering online provides a reliable option for expats and locals across Asia who need consistent access to their maintenance medication. Generic atenolol, much of which is manufactured in India, often serves as a more affordable alternative to the original brand, making cardiovascular care more accessible regardless of location.
Will I receive the original Tenormin?
No. Tenormin is the originator brand name, made by AstraZeneca, and Yasabai uses it to identify the medicine: you receive a generic with the same active ingredient (atenolol) at the same dose, mostly a recognised Indian branded generic. The exact brand depends on stock.
How much does Tenormin cost?
Tenormin comes in 25, 50 and 100mg strengths, in packs of 14 to 350 tablets, and the price per tablet for every option is shown above, in US dollars or the currency you choose. Larger packs cost less per tablet. Paying with Bitcoin or Ethereum gives you an extra 10% off.
What is Tenormin used for?
Tenormin contains atenolol, used for hypertension, angina pectoris and arrhythmia. Atenolol is a selective beta-1 receptor antagonist.
How quickly does Tenormin work?
Atenolol usually starts to work within 1 to 2 hours, and its effect lasts about 24 hours. How quickly it works can differ from one person to another.
What side effects can Tenormin cause?
The common side effects of atenolol are cold extremities, fatigue and nausea. Less common ones include bradycardia and sleep disturbances. Serious but less common side effects include heart block, which needs urgent medical attention.
What does Tenormin interact with?
Atenolol can interact with verapamil. Tell your doctor or pharmacist about every medicine you take before you start Tenormin.
Can I buy Tenormin over the counter in Thailand?
Yes. In Thailand atenolol is sold by pharmacists without a prescription, and Yasabai does not ask for one either. We are an online store, not a dispensing pharmacy; we arrange your order and delivery on your behalf.
Ordering without a prescription →Can I order Tenormin online for delivery in Thailand?
Yes. Our pharmacy partners ship from India to Thailand and across Asia in discreet packaging. Standard Airmail takes up to 3 weeks; Express Tracked Courier takes up to 1 week.
How ordering works →What you will receive
Tenormin is the originator brand name, made by AstraZeneca. We use it here to identify the medicine only; we are not affiliated with AstraZeneca and do not ship the original Tenormin.
- You receive a generic equivalent: the same active ingredient (Atenolol) at the same dose, mostly recognised Indian branded generics from vetted manufacturers.
- The exact brand supplied depends on what is in stock at the dispatching warehouse.
- A regulated generic matches the original ingredient for ingredient by legal standard.