Tell your caregivers right away if you have any of these signs of an allergic reaction to Kalbitor within 1 hour after receiving your injection:
chest pain or tightness, fast or weak heartbeat;
wheezing, cough, throat irritation, trouble breathing;
hoarse voice, tight feeling in your throat, trouble swallowing;
swelling of your lips, tongue, or throat;
swelling or redness in your face;
itching, rash, or hives;
flushing (warmth, redness, or tingly feeling);
sneezing, runny or stuffy nose; or
dizziness, feeling like you might pass out.
An allergic reaction to ecallantide can cause symptoms that are similar to the signs of hereditary angioedema. Your caregivers will watch you closely and will quickly treat an allergic reaction to ecallantide.
Common Kalbitor side effects may include:
headache;
nausea, diarrhea;
fever;
stuffy nose, sore throat; or
skin reactions where the medicine was injected (redness, rash, itching, bruising, swelling).
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Kalbitor side effects (more detail)
