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 Dermaqual Subcutaneous Syringes (30 ct.) IV Me Now FL Effect of L carnitine administered via subcutaneous injection on hematological parameters of laboratory animals Sabirzyanova RUDN Journal of Agronomy and Animal Industries How to Self Administer Subcutaneous & Intramuscular Injections L Carnitine Injection Levocarnitine IV