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Ocrevus Zunovo

Ocrevus Zunovo Side Effects

Robert Chad Hakim, PharmD, BCCCPCydnee Ng, PharmD
Reviewed by Robert Chad Hakim, PharmD, BCCCP, Cydnee Ng, PharmD
Last reviewed on August 12, 2025

The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.

Common Side Effects

Ocrevus Zunovo serious side effects

Contact your healthcare provider immediately if you experience any of the following.

  • Reaction related to the injection: hives, rash, itching, flushing, dizziness, fever, nausea, pain in the mouth or throat, a fast heart rate, neck swelling, trouble breathing
  • Serious infection: fever, chills, weakness, sweating, trouble breathing, cough, pain while urinating, need to urinate more often
  • Inflammation of the colon: severe stomach pain, cramping, diarrhea, bloody stools
When do Ocrevus Zunovo possible side effects begin and end?
Time passed since treatment started:
M
H
D
W
M
Y
Injection site reaction
Risk of headache, nausea or other injection reaction
Risk of serious inflammation in the colon
Seek immediate medical care if you experience this side effect.

Source: DailyMed

The following Ocrevus Zunovo side effects have also been reported

Side effects that you should report to your care team as soon as possible:

  • Allergic reactions—skin rash, itching, hives, swelling of the face, lips, tongue, or throat
  • Breast tissue changes, new lumps, redness, pain, or discharge from the nipple
  • Dizziness, loss of balance or coordination, confusion or trouble speaking
  • Infection—fever, chills, cough, sore throat, wounds that don't heal, pain or trouble when passing urine, general feeling of discomfort or being unwell
  • Injection reactions—chest pain, shortness of breath or trouble breathing, feeling faint or lightheaded
  • Liver injury—right upper belly pain, loss of appetite, nausea, light-colored stool, dark yellow or brown urine, yellowing skin or eyes, unusual weakness or fatigue
  • Sudden or severe stomach pain, bloody diarrhea, fever, nausea, vomiting

Side effects that usually do not require medical attention (report these to your care team if they continue or are bothersome):

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