Int J Pharm Pharm Sci 3 39.Singh M, Chitranshi N, Singh AP et al (2012) An overview on fast disintegrating sublingual tablets
The compounds require injection, and access can be limited due to cost and shortages
We do not recommend B12 injections unless a true deficiency is present, in line with current medical guidelines
While human longevity data is still emerging, the mechanistic basis for anti-aging effects is well-established
Strength points and limitations Based on our knowledge, this is the most updated meta-analysis on this topic, including all available evidence based on our inclusion criteria of including only controlled studies, either RCTs or controlled observational studies, to reach the highest accessible quality of evidence from the available evidence found in the literature