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Eculizumab Side Effects

For the Consumer

Applies to eculizumab: intravenous solution

In addition to its needed effects, some unwanted effects may be caused by eculizumab. In the event that any of these side effects do occur, they may require medical attention.

If any of the following side effects occur while taking eculizumab, check with your doctor or nurse immediately:

More common:
  • Back pain
  • black, tarry stools
  • bladder pain
  • bloody or cloudy urine
  • blurred vision
  • burning or stinging of the skin
  • chest pain
  • cough
  • difficult, burning, or painful urination
  • difficulty with moving
  • dizziness
  • fever
  • headache
  • joint pain
  • lower back or side pain
  • muscle aching or cramping
  • muscle pains or stiffness
  • nausea
  • nervousness
  • pain or tenderness around the eyes and cheekbones
  • painful cold sores or blisters on the lips, nose, eyes, or genitals
  • pale skin
  • pounding in the ears
  • shortness of breath or troubled breathing
  • slow or fast heartbeat
  • sneezing
  • sore throat
  • sores, ulcers, or white spots on lips or in the mouth
  • stuffy or runny nose
  • swollen glands
  • swollen joints
  • tightness of the chest or wheezing
  • troubled breathing with exertion
  • unusual bleeding or bruising
  • unusual tiredness or weakness
Less common:
  • Chills
  • diarrhea
  • general feeling of discomfort or illness
  • loss of appetite
  • shivering
  • sweating
  • trouble sleeping
  • vomiting

Minor Side Effects

Some of the side effects that can occur with eculizumab may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:

More common:
  • Difficulty having a bowel movement (stool)
  • pain in the arms or legs

For Healthcare Professionals

Applies to eculizumab: intravenous solution


Common (1% to 10%): Meningococcal sepsis, aspergillus infection, arthritis bacterial, oral herpes, viral infection
Uncommon (0.1% to 1%): Meningococcal meningitis, neisseria infection, sepsis, septic shock, pneumonia, fungal infection, Haemophilus influenza infection, abscess, cellulitis, influenza, cystitis, gingival infection, impetigo tooth infection[Ref]


Common (1% to 10%): Upper respiratory tract infection, nasopharyngitis, bronchitis, dyspnea, cough, nasal congestion, pharyngolaryngeal pain, rhinorrhea
Uncommon (0.1% to 1%): Lower respiratory tract infection, sinusitis, epistaxis, throat irritation[Ref]


Common (1% to 10%): Arthralgia, myalgia, muscle spasms, bone pain, back pain, neck pain, pain in extremity
Uncommon (0.1% to 1%): Trismus, joint swelling[Ref]


Common (1% to 10%): Diarrhea, vomiting, nausea, abdominal pain, constipation, dyspepsia
Uncommon (0.1% to 1%): Gastrointestinal infection, peritonitis, gastroesophageal reflux disease, abdominal distension, gingival pain[Ref]


Common (1% to 10%): Thrombocytopenia, leukopenia, hemolysis
Uncommon (0.1% to 1%): Coagulopathy, red blood cell agglutination, abnormal clotting factor, anemia, lymphopenia, alanine aminotransferase increased, aspartate aminotransferase increased, gamma-glutamyltransferase increased, hematocrit decreased, hemoglobin decreased[Ref]


Very common (10% or more): Hypertension (up to 35%)
Common (1% to 10%): Hypotension
Uncommon (0.1% to 1%): Palpitation, accelerated hypertension, hematoma, hot flush, vein disorder[Ref]

Nervous system

Very common (10% or more): Headache (up to 44%)
Common (1% to 10%): Dizziness, dysgeusia
Uncommon (0.1% to 1%): Syncope, tremor, paresthesia[Ref]


The most common adverse reaction was headache (occurred mostly in the initial phase), and the most serious adverse reaction was meningococcal sepsis.[Ref]


Uncommon (0.1% to 1%): Depression, anxiety, insomnia, sleep disorder, abnormal dreams, mood swings[Ref]


Common (1% to 10%): Urinary tract infection
Uncommon (0.1% to 1%): Spontaneous penile erection, menstrual disorder[Ref]


Common (1% to 10%): Rash, alopecia, pruritus
Uncommon (0.1% to 1%): Urticaria, dermatitis, erythema, petechiae, skin depigmentation, hyperhidrosis, dry skin[Ref]


Uncommon (0.1% to 1%): Grave's disease[Ref]


Uncommon (0.1% to 1%): Jaundice[Ref]


Common (1% to 10%): Anaphylactic reaction
Uncommon (0.1% to 1%): Hypersensitivity[Ref]


Uncommon (0.1% to 1%): Infusion site paresthesia, infusion site pain, extravasation[Ref]


Common (1% to 10%): Decreased appetite
Uncommon (0.1% to 1%): Anorexia[Ref]


Uncommon (0.1% to 1%): Vision blurred, conjunctival irritation[Ref]


Uncommon (0.1% to 1%): Malignant melanoma, myelodysplastic syndrome[Ref]


Common (1% to 10%): Edema, chest discomfort, pyrexia, chills, fatigue, asthenia, influenza like illness
Uncommon (0.1% to 1%): Tinnitus, vertigo, feeling hot[Ref]


Uncommon (0.1% to 1%): Renal impairment, hematuria, dysuria[Ref]


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

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

3. "Product Information. Soliris (eculizumab)." Alexion Pharmaceuticals Inc, Cheshire, CT.

Not all side effects for eculizumab may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. This information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate safety, effectiveness, or appropriateness for any given patient. does not assume any responsibility for any aspect of healthcare administered with the aid of materials provided. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the substances you are taking, check with your doctor, nurse, or pharmacist.