It is crucial to promptly notify your healthcare provider if you experience any severe adverse reactions such as a significantly slow heartbeat intense dizziness fainting episodes blue discoloration of the fingers or toes or the onset or exacerbation of heart failure symptoms including breathlessness swelling in the ankles or feet excessive fatigue and sudden or unusual weight gain Additionally be attentive to any alterations in your mental wellbeing or mood such as uncharacteristic behavior or mood swings