Injectable vs Oral L Carnitine: Which Works Better? AWP How To Inject L Carnitine: A Guide Weight Wise Weight Loss Center L Carnitine Injection Levocarnitine IV INJECTABLE L CARNITINE MY EXPERIENCE I've used Injectable L Carnitine for over two years (on and off), and here's what I've found: It's not just another fat burner; it's a mitochondrial transport tool LEVOCARNITINE INJECTION, USP1 g per 5 mL vial and 4 g per 20 mL vialFOR INTRAVENOUS USE ONLYRx Only