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 Carnitine Injection China Carnitine Injection Manufacturers & Suppliers Made in China Injectable vs Oral L Carnitine: Which Works Better? AWP L Carnitine Injection Levocarnitine IV Healthy U L Carnitine Injectable 50ml Psycho Skull Supplements