Package Leaflet: Information for the Patient
Tenormin 50 mg Tablets
atenolol
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
Contents of the pack
Contents of the pack and further information
Tenormin belongs to a group of medicines called beta-blockers, it acts on your heart and circulatory system.
Tenormin is indicated for the treatment of high blood pressure (hypertension), to help prevent chest pain (angina), to ensure regular heartbeats, and also to protect the heart during and after a heart attack.
Do not take Tenormin:
Warnings and precautions
Consult your doctor or pharmacist before starting to take Tenormin:
Children
Should not be used in children.
Taking Tenormin with other medicines
Tell your doctor or pharmacist if you are taking, have recently taken, or might take any other medicines, including those obtained without a prescription, homeopathic, herbal, and other health-related products, as it may be necessary to stop treatment or adjust the dose of one of them. Some medicines may affect the action of others, in particular, tell your doctor if you are taking:
Pregnancy and breast-feeding
If you are pregnant or breast-feeding, think you may be pregnant, or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.
Pregnancy:
There is not enough data on the safety of Tenormin during the first month of pregnancy. Your doctor will decide if treatment during the second and third trimester is beneficial for you.
Breast-feeding:
Tell your doctor if you are being treated with Tenormin at the time of delivery or during breast-feeding, as your baby may be at risk of low blood sugar and slower heartbeats.
Women who are breast-feeding should consult their doctor before taking this medicine, as atenolol passes into breast milk.
Driving and using machines:
Be aware of your response to the medication because in some cases, dizziness and fatigue have been reported at usual doses. If this happens, do not drive or operate hazardous machinery.
Important information about some of the ingredients of Tenormin:
Use in athletes:This medicine contains atenolol, which may produce a positive result in doping tests.
Tenormin contains sodium
This medicine contains less than 1 mmol of sodium (23 mg) per tablet, i.e., it is essentially "sodium-free".
Take this medicine exactly as your doctor has told you. If you are not sure, ask your doctor or pharmacist.
Remember to take your medicine.
Your doctor will tell you how long to take Tenormin. Do not stop treatment before your doctor tells you to.
Recommended dose for adults:
Your doctor will decide the dose of Tenormin you should take each day depending on your situation. The table below shows the usual total daily dose for an adult. The dose is taken once a day.
High blood pressure | 1 or 2 tablets once a day |
Chest pain (angina) | 2 tablets once a day or 1 tablet twice a day |
Irregular heartbeats | 1 or 2 tablets once a day |
Protection after a heart attack | 2 tablets once a day |
If you take more Tenormin than you should
If you take more than you should, contact your doctor or the nearest hospital.
In case of overdose or accidental ingestion, consult your doctor or pharmacist immediately or call the Toxicology Information Service, phone: 91 562 04 20, indicating the medicine and the amount taken.
If you forget to take Tenormin
If you miss a dose, take it as soon as you remember. Do not take a double dose to make up for forgotten doses.
If you have any further questions on the use of this product, ask your doctor or pharmacist.
Like all medicines, this medicine can cause side effects, although not everybody gets them. With Tenormin, these can be:
Common(affects between 1 and 10 in every 100 patients)
Uncommon(affects between 1 and 10 in every 1,000 patients)
Rare(affects between 1 and 10 in every 10,000 patients)
Very rare(affects less than 1 in every 10,000 patients)
Frequency not known (cannot be estimated from the available data)
Do not be alarmed by this list of possible side effects. You may not get any of them.
If you think any of the side effects you are experiencing are serious, or if you notice any side effects not listed in this leaflet, please tell your doctor or pharmacist.
Reporting of side effects
If you experience any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Spanish Medicines and Health Products Agency's website: https://www.notificaram.es. By reporting side effects, you can help provide more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
Store the tablets in the original package, below 25°C, and protected from light and moisture.
Do not use this medicine after the expiry date which is stated on the packaging. The expiry date is the last day of the month shown.
Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. These measures will help protect the environment.
Composition of Tenormin
Appearance of the product and pack contents
This medicinal product is presented in a pack containing 60 scored tablets.
Marketing authorization holder and manufacturer
Marketing authorization holder
Atnahs Pharma Netherlands B.V.
Copenhagen Towers
Ørestads Boulevard 108, 5.tv
DK-2300 København S
Denmark
Manufacturer
AstraZeneca AB
Karlebyhusentren, Astraallen,
Sodertalje, 152 57,
Sweden
or
Corden Pharma GmbH
Otto-Hahn-Strasse 1
68723 Plankstadt,
Germany
Date of last revision of this leaflet: May 2024
Detailed and up-to-date information on this medicine is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es/
The average price of TENORMIN 50 mg TABLETS in October, 2025 is around 2.5 EUR. Prices may vary depending on the region, pharmacy, and whether a prescription is required. Always check with a local pharmacy or online source for the most accurate information.