L Carnitine Dosage for Erectile Dysfunction Compounded Carnitine (L) Injection Empower Pharmacy Is L Carnitine safe for athletes at doses up to 6000 mg day? Consensus L Carnitine 3500 Metabolic Nutrition 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. L Carnitine Dosage for Erectile Dysfunction: What the Evidence Shows and How to Use It Safely