Teduglutide (Gattex / Revestive)
A gut drug that helps people with short bowel syndrome absorb more nutrients. A recombinant GLP-2 analog, FDA-approved in 2012 for short bowel syndrome with intestinal failure; it hits a different receptor and indication than the GLP-1 weight-loss drugs.
Teduglutide (Gattex / Revestive): A gut drug that helps people with short bowel syndrome absorb more nutrients. A recombinant GLP-2 analog, FDA-approved in 2012 for short bowel syndrome with intestinal failure; it hits a different receptor and indication than the GLP-1 weight-loss drugs. Teduglutide (sold as Gattex) is a GLP-2 drug, different family than the GLP-1 weight-loss drugs.
Teduglutide (sold as Gattex) is a GLP-2 drug, different family than the GLP-1 weight-loss drugs. FDA-approved for short bowel syndrome, where patients can't absorb enough nutrients from food. Helps the remaining bowel work better. Daily injection, requires colonoscopy monitoring.
GI-recovery drug, not a performance-enhancing peptide. Federations don't typically address it.
Approved as Gattex / Revestive (2012) for short bowel syndrome with intestinal failure.
FDA-approved drug products containing this substance are available. Compounded versions are not FDA-approved.
Yes, gastroenterology specialists prescribe for short-bowel-syndrome patients.
Who it's for
- →Short bowel syndrome patients on parenteral nutrition
- →Intestinal-failure recovery contexts
- →Educational reference for the GLP-2 vs GLP-1 distinction
What to expect
- Week 1
Intestinal absorption markers begin shifting.
- Week 4
Parenteral nutrition requirements drop in responders.
- Week 8
Sustained absorption improvement.
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How it works (mechanism)
Recombinant analog of GLP-2, a hormone that promotes intestinal epithelial growth and absorption. Different receptor than GLP-1 (different family). FDA-approved for short bowel syndrome.
Dosing protocol
Stacks well with
Side effects
When NOT to use
- ⚠Active or suspected GI malignancy
- ⚠Pregnancy / nursing
Bloodwork to monitor
- • Colonoscopy at baseline + intervals
- • ALT/AST
- • Magnesium / electrolytes
Common mistakes
- • Skipping the colonoscopy schedule (polyp risk is real)
- • Confusing GLP-2 with GLP-1 (different receptor, different indication)
- • Using it outside short-bowel indication
What it actually is
Teduglutide, sold as Gattex or Revestive, is an engineered version of GLP-2. It is worth being clear that this is a different hormone from GLP-1, hitting a different receptor and doing a different job: GLP-2 makes the small intestine grow. FDA approved it in 2012 for short bowel syndrome, where people have lost enough intestine that they cannot absorb enough nutrition and depend on intravenous feeding.
GLP-2 is released by the intestine after eating and signals the gut lining to grow — taller villi, more surface area, more absorption. Natural GLP-2 is destroyed within minutes by the enzyme DPP-4. Teduglutide has a single amino acid changed at the position that enzyme attacks, extending the half-life to about two hours, which is enough for once-daily dosing. In short bowel syndrome that extra absorptive surface can be the difference between depending on intravenous nutrition and not.
Forms, and which is which
Once-daily subcutaneous injection dosed by body weight, with rotating injection sites, on prescription and under specialist care.
Verdict: The only form, and it requires the diagnosis.
Studied and used in children, with its own dosing and monitoring literature.
Verdict: An established use in a specialist setting.
Sold on the assumption that a gut-growth peptide is generally good for gut health. It is a growth signal for intestinal tissue and carries a neoplasia surveillance requirement.
Verdict: A drug with a colonoscopy requirement is not a wellness supplement.
Frequently confused because of the name. GLP-1 slows the gut and reduces appetite; GLP-2 grows the gut lining.
Verdict: Same family name, opposite practical effect.
What it is claimed to do, graded
The approved indication, with 16 phase 3 and 23 indexed randomised-trial records. For the right patient this is a substantial quality-of-life change.
The mechanism, demonstrated on biopsy and in absorption studies.
Established with its own trial and review literature.
Not studied, not indicated, and the reason it is sometimes sold outside its indication. It grows intestinal tissue, which is not a benign general-purpose action.
The opposite: it stimulates intestinal growth, so labelling requires colonoscopy before starting and periodic surveillance afterwards. That requirement is the honest summary of the risk.
Grades describe how much human evidence exists for that specific claim, not whether it will work for you or whether it is safe.
Pros and cons
- • Approved with phase 3 evidence for a condition with very few options
- • Genuinely life-changing for people dependent on intravenous nutrition
- • Once-daily dosing
- • Well-characterised monitoring requirements, which means the risks are known and managed
- • Requires colonoscopy before starting and periodic surveillance for intestinal polyps and neoplasia
- • Fluid overload is a recognised effect, since improved absorption includes fluid
- • Extremely expensive
- • Contraindicated with active or suspected gastrointestinal malignancy
- • Sold off-label for gut wellness, which ignores why the surveillance exists
When to stop
- • Any rectal bleeding or change in bowel habit that is new
- • Swelling in the legs, shortness of breath, or rapid weight gain — signs of fluid overload
- • Severe or persistent abdominal pain
- • A colonoscopy finding that needs investigation
- • A new gastrointestinal cancer diagnosis
Interactions
Increased intestinal absorption means oral drugs may be absorbed more completely, so doses of narrow-therapeutic-index drugs may need revisiting.
It is a growth signal for intestinal tissue. This is the central contraindication.
Fluid overload is a recognised effect and can unmask or worsen heart failure.
Enhanced absorption can raise levels of drugs taken orally.
Not an interaction. It is a requirement of using the drug, before starting and periodically thereafter.
Is this for you?
- • People with short bowel syndrome and intestinal failure, under specialist gastroenterology care
- • Anyone who wants to understand why GLP-2 is not a weight-loss drug despite the family name
- • You have active or suspected gastrointestinal cancer
- • You are taking it for general gut health — that use is unstudied and skips the surveillance the drug requires
- • You cannot commit to colonoscopic monitoring
- • You are pregnant or nursing
The one number
Sources for the claims above
- Use in paediatric short bowel syndrome
- Drug monograph
- Clinical profile in short bowel syndrome
Drug & supplement interactions
- ⚠Polyp surveillance required, drugs that promote epithelial growth should be reviewed with provider
- ⚠Affects absorption of orally-dosed medications (variable per individual)
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