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(teduglutide [rDNA origin]) for Injection


The active ingredient in GATTEX (teduglutide [rDNA origin]) for injection is teduglutide (rDNA origin), which is a 33 amino acid glucagon-like peptide-2 (GLP2) analog manufactured using a strain of Escherichia coli modified by recombinant DNA technology. The chemical composition of teduglutide is L-histidyl-Lglycyl-L-aspartyl-L-glycyl-L-seryl-L-phenylalanyl-L-seryl-L-aspartyl-L-glutamyl-L-methionyl-L-asparaginyl-L-threonyl-L-isoleucyl-L-leucyl-L-aspartyl-Lasparaginyl-L-leucyl-L-alanyl-L-alanyl-L-arginyl-L-aspartyl-L-phenylalanyl-L-isoleucyl-L-asparaginyl-L-tryptophanyl-L-leucyl-L-isoleucyl-L-glutaminyl-Lthreonyl-L-lysyl-L-isoleucyl-L-threonyl-L-aspartic acid. The structural formula is:

Figure 1: Structural formula of teduglutide

GATTEX (teduglutide [rDNA origin]) Figure 1 Illustration

Teduglutide has a molecular weight of 3752 Daltons. Teduglutide drug substance is a clear, colorless to light-straw–colored liquid.

Each single-use vial of GATTEX contains 5 mg of teduglutide as a white lyophilized powder for solution for subcutaneous injection. In addition to the active pharmaceutical ingredient (teduglutide), each vial of GATTEX contains 3.88 mg L-histidine, 15 mg mannitol, 0.644 mg monobasic sodium phosphate monohydrate, 3.434 mg dibasic sodium phosphate heptahydrate as excipients. No preservatives are present.

At the time of administration the lyophilized powder is reconstituted with 0.5 mL of Sterile Water for Injection, which is provided in a prefilled syringe. A 10 mg/mL sterile solution is obtained after reconstitution. Up to 0.38 mL of the reconstituted solution which contains 3.8 mg of teduglutide can be withdrawn for subcutaneous injection upon reconstitution.

What are the possible side effects of teduglutide (Gattex)?

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.

Stop using teduglutide and call your doctor at once if you have severe constipation or stomach cramps.

Common side effects may include:

  • nausea, vomiting, stomach pain, bloating, gas;
  • headache;
  • cold symptoms such as stuffy nose, sneezing, sore throat; or
  • pain, swelling, redness, or other irritation where the medicine was injected.

This is not a complete list of side...

Read All Potential Side Effects and See Pictures of Gattex »

Last reviewed on RxList: 7/10/2014
This monograph has been modified to include the generic and brand name in many instances.

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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