Skip to main content

Injectafer infusion: How long does it take and how often is it given?

Medically reviewed by Leigh Ann Anderson, PharmD. Last updated on May 11, 2021.

Official answer


Injectafer is given either as a slow intravenous (IV) push that takes roughly 8 minutes, or as an IV infusion that takes at least 15 minutes. Times may be longer due to preparation and administration. It is given as either a single injection or as two injections separated by at least 7 days. Injectafer treatment may need to be repeated if iron deficiency anemia reoccurs.

After your injection is finished, your health care provider will watch you closely for about an extra 30 minutes to see if you have signs or symptoms of an allergic reaction. So you’ll be at the clinic for at least 45 minutes or an hour.

You can eat as you normally would before your appointment unless your doctor told you otherwise.

In adult patients weighing 50 kg (110 lb) or more, Injectafer can be given as one or two intravenous doses.

  • If given in two doses, the dose is 750 mg per dose separated by at least 7 days (for a total cumulative dose of 1,500 mg of iron per course.)
  • Alternatively, it may be as a single-dose treatment course of 15 mg/kg of body weight (not to exceed 1,000 mg).

In patients weighing less than 50 kg (110 lb):

  • the recommended dosage is Injectafer 15 mg/kg body weight given intravenously (IV) in two doses separated by at least 7 days

Injectafer (ferric carboxymaltose injection), from Daiichi Sankyo, is an injectable iron replacement product. It comes as a single-dose vial containing either 750 mg iron/15 mL or 1,000 mg iron/20 mL.

Injectafer has two approved uses:

  • to treat iron deficiency anemia (IDA) in adults who cannot tolerate or failed treatment with oral iron products
  • for patients with non-dialysis dependent chronic kidney disease.

Common side effects you might experience with Injectafer include nausea, high blood pressure, flushing, dizziness and low levels of phosphorous in your blood.

Be sure to report any signs and symptoms of an allergic reaction that may develop during and after your Injectafer injection, such as a rash, itching, dizziness, lightheadedness, swelling and breathing problems.

Learn more: Injectafor side effects (in more detail)

This is not all the information you need to know about Injectafer for safe and effective use. Review the full Injectafer information here, and discuss this information with your doctor or other health care provider.


Related medical questions

Drug information

Related support groups