Before you start taking it, risks associated with the use of this particular beta blocker should be discussed with your healthcare provider. You should avoid taking this medicine completely if you have a slow heartbeat, serious
heart failure, or certain types of irregular heart rhythms (especially second- or third-degree heart block).
It is also vital to talk to your healthcare provider before taking atenolol if you are pregnant or breastfeeding, as there are clear health risks involved.
Certain side effects have been reported with atenolol. Some of the most commonly reported side effects of atenolol include cold hands or feet, tiredness, dizziness, and shortness of breath. Most side effects are mild and do not require medical attention, but you should contact your healthcare provider immediately if you experience unexplained swelling, lightheadedness, or difficulty breathing.