They are also vulnerable to confounding by indication: the people who get prescribed a newer, more expensive medication often differ systematically from those who do not, in ways that statistical adjustment cannot fully erase
While theres a substantial body of animal research supporting its regenerative effects, we do not yet have conclusive clinical evidence to guarantee long-term safety or efficacy in humans
It is supplied to the laboratory market as a research-use-only reference compound
Peer review Peer review information Nature Medicine thanks Johnny Ludvigsson, Judy Zhong and the other, anonymous, reviewer(s) for their contribution to the peer review of this work
This leaves compounded drugs with little oversight and raises serious issues with their safety, quality, and efficacy as compared to FDA-approved drugs
For example, Applied Nutrition L-Carnitine 120 Capsules offers a reliable and effective option