In order to minimize risks, dangers associated with the use of atenolol should be reviewed with your healthcare provider before treatment begins. It is important to talk to your healthcare provider before using atenolol if you have
heart disease,
asthma,
diabetes, or any other medical conditions. You should not take atenolol at all if you have serious
heart failure, a slow heartbeat, or certain types of irregular heart rhythms.
There are also potential side effects that you should be aware of before starting treatment. Some of the most common side effects that were reported in clinical studies include shortness of breath, tiredness, and low
blood pressure. While most atenolol side effects are mild, some are potentially serious and require immediate medical attention, including chest pain, sudden weight gain, and fainting spells.