Atenolol is a beta blocker: a drug that lowers blood pressure, makes the heart beat slower, and reduces the oxygen demand of the heart. More information

A doctor will review your order and write you a prescription, if appropriate. This prescription is then forwarded to a pharmacy. The pharmacy will have your medicine delivered to you within one to three working days. Read more about this process here.

What is Atenolol ?

Atenolol is a beta blocker: a drug that lowers blood pressure, makes the heart beat slower, and reduces the oxygen demand of the heart.

What is Atenolol used for?

Atenolol can be prescribed with high blood pressure, heart disease (angina pectoris, cardiac arrhythmias, myocardial infarction), migraine, too rapid functioning thyroid, anxiety and nervousness, and essential tremor.

How to use Atenolol?

Take Atenolol at fixed times. The tablet can be swallowed as a whole with some liquid. Note: You can not just stop using Atenolol. This medication should always be reduced gradually to prevent health problems.


Atenolol tablets are available in 25, 50 and 100 mg. Ask the doctor which strength you should use. The usual dosage depends which condition you have. Follow the advice of the doctor. A missed dose up can be taken at a later time. Follow the procedure as described in the leaflet. An overdose often causes very low blood pressure and heart rate, causing weakness, fatigue and asthma attacks. In this case, warn a doctor.

Side effects

Atenolol has the following side effects:

  • dizziness due to a reduced blood pressure (these symptoms often disappear after continued use)
  • stomach or intestinal symptoms (nausea, vomiting, constipation, diarrhea)
  • dry mouth
  • sweating
  • cold hands and feet.

You can find a complete list of side effects in the leaflet. Talk to the doctor if you experience severe side effects, or if you notice any side effects that are not listed in this leaflet.

When should you not use Atenolol (contraindications)

You may not use Atenolol if you are hypersensitive to the active substance atenolol or any of the excipients used. Consult with the doctor about the use of Atenolol if you suffer from asthma or COPD, an autoimmune disease or other serious condition.

Pregnancy / breastfeeding

You may not use Atenolol if you are breastfeeding. Also, the use of this medicine is not recommended if you are pregnant or want to become pregnant, unless the doctor advises otherwise.

Interaction with other drugs

Atenolol may cause an interaction with the following medications:

  • other antihypertensive medications
  • anti-inflammatory painkillers
  • alpha blockers
  • glucose reducing drugs
  • epinephrine injections

Talk to the doctor or pharmacist if you are taking any of these drugs or other medications.

Driving Ability

If you use Atenolol you may feel dizzy the first couple of days.This often disappears after a while and you are able to participate in traffic without any problems.


The combination of Atenolol with alcohol may cause dizziness.Moderate your alcohol consumption to prevent this.