Metoprolol
Common Side Effects Drowsiness Dizziness Tiredness Diarrhea Slow heartbeat may occur Decreased sexual ability has been reported infrequently Serious Side Effects very slow heartbeat Severe dizziness Fainting Blue fingers/toes Trouble breathing New or worsening symptoms of heart failure (such as swelling ankles/feet Severe tiredness Shortness of breath Unexplained/sudden weight gain Mental/mood changes (such as confusion, mood swings, depression) Very Serious Allergic Reactions Is Rare Rash Itching/swelling (especially of the face/tongue/throat) Severe dizziness Trouble breathing