C1 esterase inhibitor (human) Side Effects

Some side effects of C1 esterase inhibitor (human) may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

For the Consumer

Applies to C1 esterase inhibitor (human): intravenous kit, intravenous powder for injection

Stop your IV infusion and Get emergency medical help if you have any of these signs of an allergic reaction while taking C1 esterase inhibitor (human): hives; wheezing or difficult breathing; feeling like you might pass out; or swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have any other serious side effect, such as:

• new or worsening pain;

• sudden numbness or weakness, especially on one side of the body;

• sudden severe headache, confusion, problems with vision, speech, or balance;

• stomach pain or swelling;

• chest pain, sudden cough, rapid breathing, fast heart rate; or

• pain, swelling, warmth, or redness in one or both legs.

Less serious side effects of C1 esterase inhibitor (human) may include:

• nausea, vomiting, stomach pain;

• altered sense of taste;

• cold symptoms such as stuffy nose, sneezing, sore throat;

• mild itching or rash; or

• mild headache.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

For Healthcare Professionals

Applies to C1 esterase inhibitor (human): intravenous kit, intravenous powder for injection

Respiratory

Respiratory side effects have included sinusitis, bronchitis, upper respiratory tract infection, and viral upper respiratory tract infection.

Nervous system

Nervous system side effects have included headache.

Musculoskeletal

Musculoskeletal side effects have included limb injury, back pain, and pain in extremity.

Dermatologic

Dermatologic side effects have included pruritus.

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