Question: how often is eribulin given?
Answer: HALAVEN is given by an injection into your vein (known as an intravenous, or IV, infusion). Each HALAVEN dose is given over a short period of 2 to 5 minutes. One cycle of treatment lasts 21 days, and consists of 1 IV infusion once a week for 2 weeks, and then 1 week without HALAVEN.