Amiodarone has more side effects, and serious side effects can lead to bradycardia or conduction block, and some can also develop hypotension, and the above symptoms need to be discontinued immediately. Because bradycardia can lead to cardiac arrest if not treated in time, and cardiac block can also aggravate existing heart disease, the side effects of intravenous administration are more frequent than those of oral medication, and because the product is metabolized more slowly in the body, the adverse effects last longer after they occur. Although the cardiovascular side effects of the drug are more obvious, other side effects should not be ignored, so stop the drug if you feel uncomfortable. The thyroid gland can lead to hyperthyroidism and hypothyroidism; the digestive function can lead to constipation, nausea, vomiting; the nervous system can appear muscle weakness, and the skin can appear hyperpigmentation.