Could Isoptin have caused bundle block?

Isoptin (verapamil) is an antihypertensive and antiarrhythmic drug that inhibits the flow of calcium to the heart cells, which leads to a decrease in muscle tone and a decrease in the rate of heart contractions. In some cases, Isoptin can cause atrioventricular blocks, but rarely causes left bundle branch block. Left bundle branch blocks can result from many factors, including heart disease such as coronary artery disease, hypertension, heart attack, cardiomyopathy, or myocarditis. They can also be caused by other factors such as medications, magnesium deficiency, hypokalemia, pulmonary infarction. As an outsider, I do not have access to the patient's full medical history. Always consult your doctor if you are unsure about medications or test results. The GdziePoLek.pl service also allows you to obtain a teleconsultation with a doctor: https://www.gdziepolek.pl/telekonsultacja I also encourage you to report the occurrence of side effects of the preparation. Reporting side effects increases control over medicines available on the market. We wrote about how and why to report side effects in the article: https://www.gdziepolek.pl/artykuly/jak-i-dlaczego-zglaszac-dzialania-niepozadane