Possible Interaction: Carnitine and Hydroxyproline

“It is noteworthy that some biochemical parameters (thyrotropin and urine hydroxyproline ) were refractory to the l‐carnitine inhibition of thyroid hormone action, while osteocalcin changed in the hyperthyroid direction, but with a beneficial end result on bone.”

“ Carnitine administration had also increased hydroxyproline levels in the methylprednisolone/carnitine group compared with the control group (P < 0.05).”