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.
For symptomatic patients, the healthcare team must determine the cause of bradycardia. In many cases, bradycardia results from use of other drugs, specifically other antiarrhythmicsâfor instance, beta blockers and calcium channel blockers. So those drugs may need to be withheld temporarily until their effects wear off.