Should I Take Acetyl L Carnitine or L Carnitine HealthAid Neuroprotective effects of L carnitine towards oxidative stress and inflammatory processes: a review of its importance as a therapeutic drug in some disorders Metabolic Brain Disease Springer Nature Link L Carnitine: Benefits, side effects, and dosage Levocarnitine Tablets (330 mg) Levocarnitine Oral Solution (1 g 10 mL multiple unit container) Levocarnitine Oral Solution (Sugar Free) (1 g 10 mL multiple unit container) For oral use only. Not for parenteral use. Carnitine: the claims and why it may not work