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Retatrutide
Retatrutide is a triple agonist targeting the glucagon-like peptide-1 (GLP-1), glucose-dependent insulinotropic polypeptide (GIP), and glucagon (GCGR) receptors
It is being studied for the treatment of obesity, type 2 diabetes (T2D), and metabolic dysfunction-associated steatotic liver disease (MASLD), with potential applications for other metabolic conditions like non-alcoholic fatty liver disease (NAFLD), obstructive sleep apnea, and knee osteoarthritis
Unlike dual agonists like tirzepatide or single agonists like semaglutide, Retatrutide’s triple-receptor action aims to enhance weight loss, glycemic control, and metabolic health by synergistically regulating appetite, insulin secretion, glucose metabolism, and energy expenditure
One major benefit of Retatrutide is MUSCLE PRESERVATION. Unlike some weight loss drugs, Retatrutide may preserve lean muscle mass, reducing frailty risk
Mechanism of Action
GLP-1 Receptor Agonism: Stimulates insulin secretion (glucose-dependent), slows gastric emptying, suppresses appetite, and enhances satiety
GIP Receptor Agonism: Enhances insulin release post-meal, improves insulin sensitivity, and may contribute to weight loss
Glucagon Receptor Agonism: Increases energy expenditure, promotes fat mobilization, and reduces liver fat, while GLP-1/GIP activity prevents hyperglycemia
Research application
Copied from the handbook as research notes. and not instructions.
10mg vial
- 2mL of BAC water
- 2mg = 40 units
- 4mg = 80 units
- 6mg = 120 units
30mg vial
- 3mL BAC water
- 1mg = 10 units
- 2mg = 20 units
- 3mg = 30 units
Etc
50mg vial
- 3mL BAC wafer
- 1mg = 6 units
- 2mg = 12 units
- 3mg = 18 units
Etc
60mg vial
- 3mL BAC water
- 1mg = 5 units
- 2mg = 10 units
- 3mg = 15 units
Etc
- Weeks 1-4: 1mg once weekly. Starting dose to asses tolerance
- Weeks 5-8: 2mg once weekly. Gradually increase if tolerated
- Weeks 9-12: 4mg once weekly. Midrange dose
- Weeks 13+: 8mg or 12mg once weekly
Phase 3 trails of Retatrutide have reported participant use as long as 68 to 80 weeks
Unless other wise noted intermuscular (IM) peptides are commonly administered via subcutaneous (SQ) injection with 30-31 gauge syringes
From @BowTiedYukon