A medication can be medically necessary in the clinical sense (your doctor believes you need it, you meet FDA labeling criteria, evidence supports its use) and still not be covered because your plan's definition of medical necessity excludes weight-loss treatments
2017 meta-analysis: Five RCTs in 631 adults with insulin resistance showed that 23 g/day L-carnitine for 4 weeks to 12 months improved insulin resistance, with benefits at 12 months exceeding those at 3 months [3][42]
Lu C, et al
September 15, 2025: CVS Caremark Under Fire for Dropping Zepbound from Its List of Covered Medications Stakeholders have sued CVS Caremark, a Pharmacy Benefit Manager, for taking Zepbound off its list of preferred formularies
Advantages: Localized delivery to target tissue (skin, scalp) Non-invasive Lower systemic exposure Well-tolerated with established safety record in cosmeceuticals Limitations: Limited dermal penetration (molecular weight ~340 Da near the cutoff for transdermal absorption) No systemic anti-aging or anti-inflammatory effects Efficacy dependent on formulation vehicle (liposomal carriers significantly improve penetration) GHK-Cu Injection (Subcutaneous) GHK-Cu injection is explored in research settings for systemic administration
The exact mechanism behind AOD-9604 and its possible effects on lipolysis is still being explored