Your doctor may have prescribed epoetin or darbepoetin because these medicines may help your body make red blood cells. It usually takes several weeks before the medicine starts to work.
The medicine is given as an injection under the skin or into a vein (I.V.). If you miss a dose, take it as soon as you can, unless it is almost time for your next dose. If it is almost time for your next dose, then skip the missed dose and get back on your regular schedule.
Do not take two doses of the medicine at once. Do not freeze the medicine. Store it in the refrigerator. Do not shake the bottle before you prepare the shot.
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