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.
Intravenously administered amiodarone causes heart block or bradycardia in 4.9 percent of patients and hypotension in 16 percent. 2 If these conditions occur, infusion of the drug should be discontinued, or the rate of infusion should be reduced.
Bradycardia can be caused by: 1  Changes in the heart that are the result of aging. 2  Diseases that damage the heart's electrical system. 3  Conditions that can slow electrical impulses through the heart.  Some medicines for treating heart problems or high blood pressure, such as beta-blockers, antiarrhythmics, and digoxin.