| Allergic reactions | — | — | hives or welts, itching, or skin rash | Allergic reactions | swelling of the face, throat, tongue, lips, and eyes |
| Angina pectoris | — | — | Angina pectoris | — | chest pain or pressure |
| Atrial fibrillation | — | — | Atrial fibrillation | — | — |
| Atrial flutter | — | — | Atrial flutter | — | — |
| Atrioventricular block | — | — | Atrioventricular block first degree | — | — |
| Blood pressure increased | common | Increased blood pressure | Blood pressure increased | Increase in blood pressure | — |
| Bradycardia | very common | Bradycardia | Bradycardia | Slow heartbeat | slow heartbeat |
| Bronchitis | common | — | Bronchitis | — | — |
| Cardiac failure | very common | — | Cardiac failure | — | — |
| Chest pain | — | Chest pressure | chest pain or discomfort | — | chest pain or pressure |
| Confusion | — | — | confusion | — | — |
| Difficulty breathing | — | Difficulty breathing | — | — | difficulty swallowing or breathing |
| Dizziness | — | Dizziness | dizziness | — | dizziness |
| Double vision | common | — | double vision | — | seeing double |
| ECG prolonged QT interval | uncommon | — | ECG prolonged QT interval | — | — |
| Fatigue | — | Fatigue | unusual tiredness | — | excessive tiredness |
| Headache | — | — | headache | — | — |
| Hives | — | — | hives or welts, itching, or skin rash | — | swelling of the face, throat, tongue, lips, and eyes |
| Hypertension | — | — | Hypertension | — | — |
| Hypotension | — | — | Hypotension | Low blood pressure | — |
| Irregular heartbeat | — | Irregular or rapid heartbeat | fast or irregular heartbeat | Heart rhythm changes | fast, irregular, or pounding heartbeat |
| Lack of energy | — | Lack of energy | — | — | lack of energy |
| Lightheadedness | — | — | lightheadedness, dizziness, or fainting | — | — |
| Luminous phenomena | common | Luminous phenomena | Phosphenes | Luminous phenomena | seeing bright spots |
| Myocardial infarction | — | — | Myocardial infarction | — | — |
| Nervousness | — | — | nervousness | — | — |
| Palpitations | uncommon | Palpitations | Palpitations | — | fast, irregular, or pounding heartbeat |
| Pneumonia | common | — | Pneumonia | — | — |
| Shortness of breath | — | Worsened shortness of breath | — | — | worsening shortness of breath |
| Sinus arrhythmia | uncommon | — | Sinus arrhythmia | — | — |
| Sinus tachycardia | — | — | Sinus tachycardia | — | — |
| Sudden cardiac death | — | — | Sudden cardiac death | — | — |
| Supraventricular extrasystoles | — | — | Supraventricular extrasystoles | — | — |
| Swelling | — | — | hives or welts, itching, or skin rash | — | swelling of the face, throat, tongue, lips, and eyes |
| Torsade de pointes | — | — | Torsade de pointes | — | — |
| Trouble seeing | common | — | trouble seeing | Changes in vision | vision problems |
| Unstable angina | — | — | Unstable angina | — | — |
| Ventricular extrasystoles | — | — | Ventricular extrasystoles | — | — |
| Ventricular fibrillation | — | — | Ventricular fibrillation | — | — |
| Ventricular tachycardia | — | — | Ventricular tachycardia | — | — |
| Vision problems | common | — | blurred vision | Changes in vision | vision problems |