FDA banned it in late 2023 "Category 2: Substance with Safety Concerns" Why the FDA banned it: Potential immune reactions (immunogenicity) Manufacturing impurities in compounded versions Complete lack of human safety data Risk of contamination Legal status: NOT FDA-approved Illegal to compound in pharmacies Banned by WADA for athletes Possession not illegal (it's not a DEA scheduled substance) Sold online as "research chemical" 2
Challenges and Limitations Methodological Issues in Vitamin D Research The vitamin D research literature is complicated by several methodological challenges that affect interpretation and clinical application
Xu, 2021) and others finding none (Dangour, 2008
Further, we studied isoprenaline (75 or 150 mg/kg s.c.) myocardial infarction (1 challenge) and reinfarction (isoprenaline at 0 h and 24 h, 2 challenges) in rats (assessed at the end of the subsequent 24 h period)
The information in the description is educational and scientific in nature and refers to results reported in the preclinical literature it does not constitute medical advice or instructions for administration.
When growth hormone then interacts with these upregulated receptors, it produces a dose-dependent and time-dependent increase in cell proliferation