How does tirzepatide work?
Tirzepatide is a dual GIP and GLP-1 receptor agonist. Coskun and colleagues reported in Molecular Metabolism (2018) that the peptide activates both the glucose-dependent insulinotropic polypeptide receptor and the glucagon-like peptide-1 receptor. That dual-receptor design is the mechanism. Compounded tirzepatide is not FDA-approved.
GIP and GLP-1 are gut hormones involved in appetite and blood-sugar signaling. Compounded tirzepatide injection is listed at $339 per 4 weeks. Compounded products are prepared for an individual patient by a licensed U.S. 503A pharmacy; the FDA states they do not undergo premarket review for safety, effectiveness, or quality. PinwellRx is nationwide telehealth with Houston as HQ and ships to all 50 states. A licensed clinician can still say no. Full refund if you are not prescribed. See also What is compounded tirzepatide?.
Semaglutide is a GLP-1 receptor agonist, one gut-hormone signal, not dual. How does semaglutide work?
How does oral semaglutide work?
An oral tablet can still be a GLP-1 receptor agonist. Buckley and colleagues reported in Science Translational Medicine (2018) that a derivatized GLP-1 receptor agonist can be absorbed from the stomach as a tablet. The receptor target is the same class of signal; the route is oral. Compounded oral semaglutide is not FDA-approved.
Oral semaglutide tablets are listed at $279 per 4 weeks. Compounded oral tablets are not the same as an FDA-approved oral GLP-1 product and have not been reviewed by the FDA for safety or effectiveness. Whether a tablet is appropriate for you is a clinical decision. The clinician can say no. Mechanism of the injectable is covered on How does semaglutide work?.
What is a GLP-1 microdose?
A microdose is a lower starting amount of the same receptor signals used in compounded GLP-1 or dual GIP and GLP-1 therapy. It is still a prescription medication, not a supplement. A licensed clinician decides whether a microdose is appropriate and may decline.
Semaglutide microdose is listed at $179. Tirzepatide microdose is listed at $179. Lower starting amounts do not make these products over-the-counter, and they remain compounded medications that are not FDA-approved. PinwellRx does not apply branded-trial percentages to compounded products. Nationwide telehealth; Houston is HQ; ships to all 50 states.