fda glp-1 compounding crackdown news october 2025 Intensifies on FDA warns telehealth companies over

In an early study, Frick et al

Preclinical studies in rodents found that GLP-1 receptor agonists stimulate C-cell proliferation in the thyroid the cell type implicated in medullary thyroid carcinoma (MTC)

23-25 Despite those studies showing an overall long-term benefit of tight sugar control in preventing worse retinopathy, a small percentage of subjects had a paradoxical early worsening seen in the first year

This is the single most important practical difference between the two peptides and the primary factor in choosing between them

Low-temperature storage (such as freeze-drying at -20C and keeping away from light) can slow down the rate of chemical reactions and extend the shelf life of the powder