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 BIO INNOVATIONS: Heart Smart Kit Chelated Magnesium, Fish Oil Complex, CoQ10 L Carnitine & D Ribose L Carnitine Injection Levocarnitine IV LCarnitine Injections Energy & Fat Metabolism Support TX L Carnitine 500 mg with Vitamin B 6 Medicine Center Pharmacy Acetyl L Carnitine 100 500mg Capsules