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 Neuroprotective effects of L carnitine towards oxidative stress and inflammatory processes: a review of its importance as a therapeutic drug in some disorders Metabolic Brain Disease Springer Nature Link How Does Carnitine Support Hashimoto's? Dr. Izabella Wentz What are the adverse effects of L Carnitine? Consensus L Carnitine Side Effects & Safety: A Complete Guide The Science of Good Health Role of L carnitine in Cardiovascular Health: Literature Review Cureus