Tenormin may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
* dizziness
* lightheadedness
* tiredness
* drowsiness
* depression
* upset stomach
* diarrhea
Some side effects can be serious. The following symptoms are uncommon, but if you experience any of them, call your doctor immediately:
* shortness of breath
* swelling of the hands, feet, ankles, or lower legs
* unusual weight gain
* fainting
Atenolol may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.
Symptoms of overdose may include:
* lack of energy
* difficulty breathing
* wheezing
* slow heartbeat
* fainting
* swelling of the hands, feet, ankles, or lower legs
* unusual weight gain
* shakiness
* dizziness
* rapid heartbeat
* sweating or confusion
* blurred vision
* headache
* numbness or tingling of the mouth
* weakness
* excessive tiredness
* pale color
* sudden hunger
Keep all appointments with your doctor.
Do not let anyone else take your medication.
Information about Tenormin
