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(eptifibatide) Injection Solution for Intravenous Use


Eptifibatide is a cyclic heptapeptide containing 6 amino acids and 1 mercaptopropionyl (des-amino cysteinyl) residue. An interchain disulfide bridge is formed between the cysteine amide and the mercaptopropionyl moieties. Chemically it is N6-(aminoiminomethyl)-N2-(3-mercapto-1-oxopropyl)-Llysylglycyl-L-α-aspartyl-L-tryptophyl-L-prolyl-L-cysteinamide, cyclic (1→6)-disulfide. Eptifibatide binds to the platelet receptor glycoprotein (GP) IIb/IIIa of human platelets and inhibits platelet aggregation.

The eptifibatide peptide is produced by solution-phase peptide synthesis, and is purified by preparative reverse-phase liquid chromatography and lyophilized. The structural formula is:

INTEGRILIN® (eptifibatide) Structural Formula Illustration

INTEGRILIN Injection is a clear, colorless, sterile, non-pyrogenic solution for intravenous (IV) use with an empirical formula of C35H49N11O9S2 and a molecular weight of 831.96. Each 10-mL vial contains 2 mg/mL of INTEGRILIN and each 100-mL vial contains either 0.75 mg/mL of INTEGRILIN or 2 mg/mL of INTEGRILIN. Each vial of either size also contains 5.25 mg/mL citric acid and sodium hydroxide to adjust the pH to 5.35.

What are the possible side effects of eptifibatide (Integrilin)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have a serious side effect such as:

  • easy bruising, unusual bleeding (nose, mouth, vagina, or rectum), purple or red pinpoint spots under your skin;
  • blood in your urine;
  • black, bloody, or tarry stools;
  • coughing up blood or vomit that looks like coffee grounds;
  • any bleeding that will not stop;
  • sudden numbness or weakness, especially on...

Read All Potential Side Effects and See Pictures of Integrilin »

Last reviewed on RxList: 4/4/2013
This monograph has been modified to include the generic and brand name in many instances.

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