April 29, 2017


(collagenase clostridium histolyticum) For Injection, For Intralesional Use


XIAFLEX contains purified collagenase clostridium histolyticum, consisting of two microbial collagenases in a defined mass ratio, Collagenase AUX-I and Collagenase AUX-II, which are isolated and purified from the fermentation of Clostridium histolyticum bacteria.

Collagenase AUX-I is a single polypeptide chain consisting of approximately 1000 amino acids of known sequence. It has an observed molecular weight of 114 kiloDaltons (kDa). It belongs to the class I Clostridium histolyticum collagenases.

Collagenase AUX-II is a single polypeptide chain consisting of approximately 1000 amino acids of deduced sequence. It has an observed molecular weight of 113 kDa. It belongs to the class II Clostridium histolyticum collagenases.

XIAFLEX is supplied as a sterile lyophilized powder (white cake) intended for reconstitution with the supplied sterile diluent (0.3 mg/mL calcium chloride dihydrate in 0.9% sodium chloride) prior to intralesional injection into a Dupuytren’s cord or a Peyronie’s plaque.

XIAFLEX is available in single-use, glass vials containing 0.9 mg of collagenase clostridium histolyticum. Each vial also contains 0.5 mg of hydrochloric acid, 18.5 mg of sucrose, and 1.1 mg of tromethamine.

What are the possible side effects of collagenase clostridium histolyticum (Xiaflex)?

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

Tell your caregiver at once if you have a serious side effect such as:

  • feeling like you might pass out (even while lying down);
  • bruising or bleeding in the treated hand;
  • severe pain, itching, redness, warmth, swelling, or other irritation in the treated hand;
  • numbness or tingling in the treated hand;
  • fever, chills, body aches, flu symptoms, swollen...

Read All Potential Side Effects and See Pictures of Xiaflex »

Last reviewed on RxList: 12/8/2016
This monograph has been modified to include the generic and brand name in many instances.

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