American Regent Introduces Levocarnitine Injection, USP; FDA Approved, "AP" Rated, and Therapeutically Equivalent to Carnitor L CARNITINE Why we chose to bring this injection on it pairs GREAT with our weight loss program, is a stellar stand alone injection, and is absorbed much more effectively as injection. AND, LEVOCARNITINE INJECTION, USP1 g per 5 mL vial and 4 g per 20 mL vialFOR INTRAVENOUS USE ONLYRx Only mesohyal carnitine injectable L carnitine for mesotherapy