They may be closer to restricted pharmacy compounding, but they have not become ordinary prescriptions, supplements or over-the-counter treatments.
Animal data on LR3 infusion in pigs showed continued suppression of plasma growth hormone (~23% decrease) and IGFBP-3 across the 4-day infusion window (Tomas et al., 1997) by days 8-10 of a 10-day human community protocol, this kind of HPG-axis suppression would be expected to be active
Food and water were provided ad libitum
In other cases, if your B level is normal and youre just low in the other Bs, your provider might intentionally choose a B-Complex without B to avoid unnecessary injections
Gastroenterology 114 , 842845 (1998)
[7] [9] The injection should not be administered to patients with severe hypersensitivity reactions to preservatives, if using the preserved formulation