Filgrastim, sold under the brand name Neupogen among others, is a medication used to treat low blood neutrophils due to a number of causes. This includes when it occurs following chemotherapy, radiation poisoning, HIV/AIDS, or is of unknown cause.
Bradycardia and heart block occur in 1 to 3 percent of patients receiving amiodarone. 2 Amiodarone-induced proarrhythmia occurs at an annual rate of less than 1 percent.
Amiodarone is indicated to treat ventricular tachycardia and ventricular fibrillation. Amiodarone can cause serious side effects. The first doses of amiodarone are administered in a hospital where your heart can be closely monitored in case the medication causes serious side effects.