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.
If you experience any of the following symptoms, call your doctor immediately: fever, shortness of breath, wheezing, other breathing problems, cough, or coughing or spitting up blood. Amiodarone may also cause liver damage. Tell your doctor if you have or have ever had liver disease.