Vitamin B12 injections are generally safe, but some individuals may experience side effects, including: Pain or redness at the injection site Mild diarrhea Itching Nausea or vomiting Dizziness or headaches Hot flashes In rare cases, more serious reactions, such as allergic responses (rash, swelling, trouble breathing), can occur
Six controlled trials in approximately 900 participants are summarized in Stier et al
(2004) reported that in elderly subjects with documented pineal insufficiency, epithalamin administration was associated with measurable changes in circadian melatonin release patterns, including shifts in nocturnal melatonin peak levels toward values observed in younger cohorts (6)
WADAs 2022 Prohibited List now in force
The 100 mg quantity in this listing is much larger than the 5 to 20 mg typical elsewhere in the catalog, and the reason is straightforward: the published work uses this compound at micromolar to millimolar working concentrations rather than the nanomolar concentrations at which receptor agonists are studied, and formulation and matrix-stability work consumes material quickly