While this requires slightly more preparation time and skill, most people find the process straightforward after initial instruction
Elalouf et al
This suggests any 503B requires very close regulatory scrutiny, and that role of 503Bs our drug supply as makers of medicines for last resort is entirely appropriate and should not be expanded
"Even if they're listing the right ingredients, you don't know where these ingredients are from or how they've been transported or handled, which could be really dangerous." Lin and Ramachandran recommend that anyone seeking GLP-1 drugs consult with a physician both before they start and while they're taking the medication to manage potential side effects, ensure safety and to make sure medication they receive is FDA-approved
Given the heterogeneous follow-up duration and absence of standardized assessment windows, glycemic findings should be viewed as descriptive longitudinal observations rather than definitive efficacy estimates
Skeptics counter that those figures come from voluntary reporting rather than controlled trials, and that questions remain about immunogenicity, whether the body mounts an immune response to the peptide