Compounded Carnitine (L) Injection Empower Pharmacy Carnitine Supplementation in Chronic Hemodialysis PatientsA Literature Review 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 Unlocking the Health Benefits of L Carnitine and Potential Side Effects Your Health Magazine L Carnitine: Benefits, Risks, and Its Role in Fitness and Weight Loss WellnessPulse Early research into L carnitine was often cited as underwhelming, showing negligible changes in muscle carnitine content and fat loss outcomes. However, these findings may have been limited by a short study window