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
- Diarrhea (8%)
- Upper respiratory tract infection (6%)
- Headache (6%)
Less Common Side Effects
- Nausea
- Vomiting
- Stomach pain
Zituvimet serious side effects
Contact your healthcare provider immediately if you experience any of the following.
- Buildup of lactic acid in the body: sudden drop in blood pressure, low body temperature, slow heart rhythm, feeling weak, stomach pain, nausea
- Inflammation of the pancreas: upper belly pain, nausea, vomiting
- Heart failure: shortness of breath, unusually fast weight gain, swelling of the legs or feet
- Kidney problems: urinating less, itching, swelling of the ankles or feet
- Severe allergic reaction: hives, blisters, trouble breathing, swelling of the face or throat
Source: DailyMed
The following Zituvimet 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
- Heart failure—shortness of breath, swelling of the ankles, feet, or hands, sudden weight gain, unusual weakness or fatigue
- High lactic acid level—muscle pain or cramps, stomach pain, trouble breathing, general discomfort and fatigue
- Kidney injury—decrease in the amount of urine, swelling of the ankles, hands, or feet
- Low vitamin B12 level—pain, tingling, or numbness in the hands or feet, muscle weakness, dizziness, confusion, trouble concentrating
- Pancreatitis—severe stomach pain that spreads to your back or gets worse after eating or when touched, fever, nausea, vomiting
- Redness, blistering, peeling, or loosening of the skin, including inside the mouth
- Severe joint pain
Side effects that usually do not require medical attention (report these to your care team if they continue or are bothersome):
- Diarrhea
- Gas
- Headache
- Nausea
- Runny or stuffy nose
- Sore throat
- Upset stomach
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