C1 Esterase Inhibitor Side Effects
C1 esterase inhibitor has been studied extensively in clinical trials. In these studies, the side effects that occurred in a group of people using the medication were carefully documented and compared to the side effects that occurred in a similar group of people given a placebo (an injection with no active ingredients). As a result, it was possible to see what side effects occurred, how often they appeared, and how they compared to the placebo.
The different C1 esterase inhibitor products may have different side effects. In clinical studies, the most commonly reported side effects of either product included:
- Rash -- in up to 20.8 percent of people
- Headache -- up to 19 percent
- Nausea -- up to 18 percent
- Vomiting -- up to 10 percent
- Itching -- up to 8.3 percent
- Abdominal (stomach) pain -- up to 7 percent
- Fever -- up to 5 percent
- Bad taste in the mouth -- up to 4.7 percent
- Symptoms of the common cold, such as stuffy nose or sore throat -- up to 3.5 percent
- Flu-like symptoms -- up to 3.5 percent.
Other common side effects, occurring in 2 to 3 percent of people, included:
- Pain at the injection site
- General pain
- Muscle spasms
- Skin redness.
You may experience some or none of the side effects listed in this article. Unfortunately, there is no way for your healthcare provider to know beforehand if you will have problems with a medicine that you have never tried.
Therefore, make sure to let your healthcare provider know if you develop any adverse reactions while using the drug or if something "just does not seem right." While it may not be a side effect of C1 esterase inhibitor, your healthcare provider will be able to diagnose and treat the problem.