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 Compounded Carnitine (L) Injection Empower Pharmacy L Carnitine 35g Injection* is a high dose injectable used for fat loss, metabolism support, and weight management. It's usually a mix of L Carnitine + CLA + probiotics vitamins, sold under brands like ProBio Nutrition,