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 Vitamin Supplement for Energy and Metabolism Boost Carnitine: the claims and why it may not work The Role of L Carnitine in Kidney Disease and Related Metabolic Dysfunctions Liquid L Carnitine 3000: Metabolism & Energy Support, Buzz'in Orange L Carnitine 500 mg with Vitamin B 6 Medicine Center Pharmacy