When Should You Take L Carnitine? MuscleTech L Carnitine Injections: A Clinical Guide for Practitioners National Medical Resources Inc Slim Strength: Enhance Muscle Tone with MIC + L Carnitine injections ME Skin and Wellness at Elizalde Medspa Injectable L Carnitine > Oral L Carnitine BUT do you REALLY need it?, , I dont think so., , L Carnitine is a medicine often prescribed by doctors to patients with heart issues., , In theory, it 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