Some of these side effects may occur when taking this medication, they are as follows; Drowsiness, dizziness, tiredness, diarrhea, and slow heartbeat may occur. However if any of these effects persist or worsen, contact your doctor right away.
If you are experiencing any of these rare but very serious side effects, seek medical help right away. The side effects are as follows; very slow heartbeat, severe dizziness, fainting, blue fingers/toes, trouble breathing, new or worsening symptoms of heart failure (such as shortness of breath, swelling ankles/feet, unusual tiredness, unusual/sudden weight gain), mental/mood changes (such as confusion, mood swings, depression).
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.