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 L CARNITINE 1 GM 5 ML ( L CARNITINE ) 5 X 5 ML IV USE AMPOULES L Carnitine Benefits for Fat Burning and How to Use ICONFIT Carnitine: the claims and why it may not work The Role of L Carnitine in Kidney Disease and Related Metabolic Dysfunctions The Role of l Carnitine in Mitochondria, Prevention of Metabolic Inflexibility and Disease Initiation