FIRAZYR (icatibant) is a synthetic decapeptide with five non-proteinogenic
amino acids. The chemical structure of icatibant acetate is presented in Figure
Figure 1 : Chemical Structure
Chemical name: D-Arginyl-L-arginyl-L-prolyl-L[(4R)-4-hydroxyprolyl]-glycyl-L[3-(2-thienyl)alanyl]-Lseryl-D-(1,2,3,4-tetrahydroisoquinolin-3-ylcarbonyl)-L[(3aS,7aS)-octahydroindol-2-ylcarbonyl]-Larginine,
FIRAZYR is provided as a sterile, isotonic, and buffered solution of icatibant
acetate in a single-use, prefilled syringe for subcutaneous administration.
Each mL of the solution contains 10 mg of icatibant (free base). Each prefilled
syringe delivers 3 mL of solution equivalent to a 30 mg icatibant dose. The
solution is clear and colorless.
The solution also contains sodium chloride, glacial acetic acid, sodium hydroxide
and water for injection with a pH of approximately 5.5. The solution does not
Pharmacological class: Icatibant is a bradykinin B2 receptor antagonist.
What are the possible side effects of icatibant (Firazyr)?
Get emergency medical help if you have any of these signs of an allergic reaction after using icatibant:
- chest pain or discomfort, fast or weak heartbeat;
- flushing (warmth, redness, or tingly feeling);
- feeling like you might pass out;
- itching, rash, or hives;
- runny nose, sneezing, stuffy nose;
- wheezing, cough, throat irritation, trouble breathing; or
- swelling of your face, lips, tongue, or throat.
An allergic reaction to icatibant can cause symptoms that are very similar to the signs of hereditary angioedema....
Read All Potential Side Effects and See Pictures of Firazyr »
Last reviewed on RxList: 9/1/2011
This monograph has been modified to include the generic and brand name in many instances.