<p>Tiredness, dizziness, depression, diarrhea, itching or rash, shortness of breath, slow heart rate, mental confusion, headache, somnolence, nightmares, insomnia, dyspnea, Nausea, dry mouth, gastric pain, constipation, flatulence, digestive tract disorders, heartburn, pruritus, musculoskeletal pain, blurred vision, decreased libido, and tinnitus have also&nbsp;been&nbsp;reported,&nbsp;intensification&nbsp;of&nbsp;AV&nbsp;block.</p>