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, a friend or foe for cardiovascular disease? A Mendelian randomization study BMC Medicine Springer Nature Link What Is L Carnitine? How Could It Help With Weight Management? Wellness Hub Is L Carnitine a Stimulant? Forms, Benefits & Fat Metabolism BF ESSE CMO