


Ask a doctor about a prescription for ATENOLOL ALTER 100 mg TABLETS
Package Leaflet: Information for the Patient
Atenolol Alter 100 mg Tablets EFG
Atenolol
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
Contents of the pack
Atenolol belongs to a group of medicines called beta-blockers, it acts on your heart and circulatory system.
Atenolol 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 Atenolol Alter
Warnings and precautions
Talk to your doctor before you start taking this medicine.
Children and adolescents
This medicine should not be used in children (see Do not take Atenolol Alter).
Taking Atenolol Alter with other medicines
Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines. It may be necessary to stop treatment or adjust the dose of one of them. Some medicines can 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 atenolol during the first trimester 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 atenolol 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 ask their doctor for advice 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.
Use in athletes
This medicine contains atenolol, which can produce a positive result in doping tests.
Atenolol Alter contains wheat starch
This medicine contains very low levels of gluten from wheat starch. It is considered "gluten-free" and it is very unlikely to cause problems if you have coeliac disease.
Each tablet does not contain more than 10 micrograms of gluten.
If you have a wheat allergy (different from coeliac disease), do not take this medicine.
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 this medicine. Do not stop treatment before your doctor tells you to.
Usual dose for adults
Your doctor will decide what dose of this medicine you should take each day, depending on your situation. The table below shows the usual total daily dose for an adult. The dose is usually taken once a day.
High blood pressure | 50 mg to 100 mg (half to 1 tablet of 100 mg) once a day |
Chest pain (angina) | 100 mg once a day or 50 mg (half a tablet of 100 mg) twice a day |
Irregular heartbeats | 50 mg to 100 mg (half a tablet to 1 tablet of 100 mg) once a day |
Protection after a heart attack | 100 mg once a day |
Swallow the tablet whole with water. The tablet can be divided into equal doses.
Try to take your tablet at the same time each day.
Do not stop taking your tablets even if you feel well, unless your doctor tells you to; in that case, do it gradually.
If you take more Atenolol Alter than you should
If you take more than you should, talk to your doctor or go to 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 Atenolol Alter
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.
The side effects that have been seen with this medicine are:
Common (may affect up to 1 in 10 people)
Uncommon (may affect up to 1 in 100 people)
Rare (may affect up to 1 in 1,000 people)
Very rare (may affect up to 1 in 10,000 people)
Frequency not known (frequency 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.
Reporting of side effects
If you get 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 Healthcare 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.
Do not store above 30°C. Store in the original package to protect from light and moisture.
Do not use this medicine after the expiry date which is stated on the carton. The expiry date refers to 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 Atenolol Alter
Appearance of the product and pack contents
White, lenticular tablets with a score line on one side.
Available in packs of 30 or 60 tablets.
Not all pack sizes may be marketed.
Marketing authorisation holder
Laboratorios Alter, S.A.
C/ Mateo Inurria, 30
28036 Madrid
Spain
Manufacturer
Laboratorios Alter, S.A.
C/ Mateo Inurria, 30
28036 Madrid
Spain
or
Laboratorios Alter, S.A.
C/ Zeus 6
Polígono Industrial R2
28880 Meco (Madrid)
Spain
Date of last revision of this leaflet:April 2020
Detailed and up-to-date information on this medicine is available on the website of the Spanish Agency for Medicines and Healthcare Products (AEMPS): http://www.aemps.gob.es/
The average price of ATENOLOL ALTER 100 mg TABLETS in December, 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.
The best alternatives with the same active ingredient and therapeutic effect.
Discuss dosage, side effects, interactions, contraindications, and prescription renewal for ATENOLOL ALTER 100 mg TABLETS – subject to medical assessment and local rules.