L Carnitine: Benefits, side effects, and dosage L Carnitine injection is recommended at 1 ampule every 2 3 days for best results. The L Carnitine is taken intravenously either by normal injection or using a butterfly needle. After taking this L Carnitine, you What are the recommended dosing regimens for Lcarnitine in adults, hemodialysis patients, and children with primary carnitine deficiency? NKF KDOQI Guidelines Carnitine and Acylcarnitine Analysis Service LCMS MS Quantification Creative Proteomics Frontiers Dietary supplementation with L carnitine elevates intracellular carnitine levels and affects gene expression of SLC25A20 and COX4I1, as well as non mitochondrial respiration of bovine blood cells during systemic immune challenge