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 When to take L carnitine: Dosage, forms, and side effects L Carnitine Benefits for Chronic Fatigue Syndrome L Carnitine Injections: A Clinical Guide for Practitioners National Medical Resources Inc 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