Peptide library

Survodutide

Human trialsWeight & metabolic

A once-weekly dual agonist of the glucagon and GLP-1 receptors, studied for obesity and fatty liver disease (MASH).

Investigational (Boehringer Ingelheim, phase 3 results published 2026); no approval found.

Used for

  • Weight loss
  • MASH (fatty liver with inflammation and scarring)
  • Type 2 diabetes with obesity

How it works

GLP-1 action cuts appetite; glucagon action adds energy burn and lowers liver fat.

What the research shows

  • Phase 2 (46 weeks, 387 adults without diabetes): 0.6, 2.4, 3.6 and 4.8 mg a week lost 6.2%, 12.5%, 13.2% and 14.9% vs 2.8% on placebo. Stomach side effects hit 75% vs 42%; about 60% finished the 46 weeks in both groups.
  • SYNCHRONIZE-1 (phase 3, 76 weeks, no diabetes): 3.6 and 6.0 mg lost 12.2% and 13.0% vs 5.4% on placebo; stomach side effects in 81% and 90% vs 48%.
  • SYNCHRONIZE-2 (phase 3, obesity with type 2 diabetes): 8.2% on 3.6 mg and 9.8% on 6.0 mg vs 3.9%.
  • MASH phase 2 (48 weeks, 293 people): MASH improved without worse scarring in 47%, 62% and 43% on 2.4, 4.8 and 6.0 mg vs 14% on placebo. Nausea 66% vs 23%, vomiting 41% vs 4%, diarrhea 49% vs 23%.

Dosing

Dosing isn’t listed on the public site. In the app, each published option is shown with its source (a drug label, a clinical guideline, a trial or community reports) and can be turned into a protocol you review.

Work out the units to draw for your vial →

Side effects

  • Nausea, especially after a dose step
  • Constipation or diarrhea
  • Reflux, burping
  • Lower appetite and thirst: dehydration risk
  • Vomiting and diarrhea were common in the MASH trial (41% and 49%)

Cautions

  • Not for anyone with a personal or family history of medullary thyroid cancer or MEN2.
  • Pancreatitis and gallbladder problems are uncommon but reported; severe belly pain needs urgent care.
  • Rapid weight loss costs muscle too: keep protein high and keep lifting.
  • Stop before planned surgery or sedation per your doctor (slower stomach emptying).
  • Not approved: long-term safety is still being studied.
  • Research-chemical vials have no quality control: purity, dose and sterility vary. Third-party testing helps but is no guarantee.

Storage

Unmixed powder: freezer or fridge, away from light.

Once mixed with bacteriostatic water: fridge; the common rule is to use it within 28 days.

There is no label or published stability data for this one, so treat these as habits, not limits.

Reference only, not medical advice. Written for this app from the cited research. Doses marked community-reported are not from trials.