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Ferric carboxymaltose Side Effects

Medically reviewed by Last updated on Jun 9, 2021.

For the Consumer

Applies to ferric carboxymaltose: intravenous solution

Side effects requiring immediate medical attention

Along with its needed effects, ferric carboxymaltose may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor or nurse immediately if any of the following side effects occur while taking ferric carboxymaltose:

Less common

  • Blurred vision
  • confusion
  • dizziness
  • dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
  • feeling of warmth
  • headache
  • nervousness
  • pounding in the ears
  • redness of the face, neck, arms, and occasionally, upper chest
  • slow or fast heartbeat
  • sweating
  • unusual tiredness or weakness

Incidence not known

  • Chest discomfort
  • chills
  • cough
  • difficult or labored breathing
  • difficulty swallowing
  • fainting
  • fast, pounding, or irregular heartbeat or pulse
  • fever
  • hives
  • itching
  • large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
  • puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  • skin rash
  • tightness in the chest

Side effects not requiring immediate medical attention

Some side effects of ferric carboxymaltose may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

Less common

  • Change in taste
  • discoloration at the injection site
  • loss of taste
  • vomiting


  • Abdominal or stomach pain
  • burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
  • diarrhea
  • difficulty having a bowel movement (stool)
  • pain or irritation at the injection site
  • sneezing

Incidence not known

  • Back pain
  • difficulty with moving
  • hives or welts
  • muscle pain or stiffness
  • pain in the joints
  • redness of the skin

For Healthcare Professionals

Applies to ferric carboxymaltose: intravenous solution


Common (1% to 10%): Flushing/hot flush, hypertension, hypotension

Uncommon (0.1% to 1%): Chest pain, peripheral edema, tachycardia

Rare (less than 0.1%): Phlebitis

Postmarketing reports: Chest discomfort, pallor[Ref]


Uncommon (0.1% to 1%): Erythema, rash, pruritus, urticaria

Postmarketing reports: Angioedema, dermatitis[Ref]


Common (1% to 10%): Nausea, vomiting

Uncommon (0.1% to 1%): Abdominal pain, constipation, diarrhea, dyspepsia

Rare (less than 0.1%): Flatulence[Ref]


Common (1% to 10%): Alanine aminotransferase increase

Uncommon (0.1% to 1%): Aspartate aminotransferase increase, gamma glutamyl transferase increase[Ref]


Common (1% to 10%): Pruritus, rash, urticaria, wheezing, and hypertension associated with hypersensitivity reactions

Rare (less than 0.1%): Serious anaphylactic/anaphylactoid reactions[Ref]


Injection site reactions include infusion site burning, -pain, -bruising, -discoloration, -extravasation, -irritation, and -paresthesia.[Ref]

Common (1% to 10%): Injection site reactions[Ref]


Common (1% to 10%): Blood phosphorus decrease, hypophosphatemia

Uncommon (0.1% to 1%): Blood alkaline phosphatase increase, blood lactate dehydrogenase increase[Ref]


Postmarketing reports: Arthralgia, back pain, hypophosphatemic osteomalacia, muscle spasms, myalgia[Ref]

Nervous system

Common (1% to 10%): Dizziness, dysgeusia, headache

Uncommon (0.1% to 1%): Paraesthesia

Rare (less than 0.1%): Syncope, presyncope

Postmarketing reports: Loss of consciousness[Ref]


Uncommon (0.1% to 1%): Chills, fatigue, pain, pyrexia

Rare (less than 0.1%): Malaise, rigors

Frequency not reported: Overestimate of serum iron and transferrin bound iron laboratory assays

Postmarketing reports: Face edema, vertigo[Ref]


Uncommon (0.1% to 1%): Sneezing

Rare (less than 0.1%): Bronchospasm

Postmarketing reports: Dyspnea[Ref]


Rare (less than 0.1%): Anxiety[Ref]

Frequently asked questions


1. Cerner Multum, Inc. "Australian Product Information." O 0

2. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0

3. "Product Information. Injectafer (ferric carboxymaltose)." American Regent Laboratories Inc, Shirley, NY.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.