Injectable L Carnitine 500mg ml (20ml) : Amazon.ca: Health & Personal Care L CARNITINE 1 GM 5 ML ( L CARNITINE ) 5 X 5 ML IV USE AMPOULES Buy L carnitine for Horses First Choice HRT Medics Nutraceutical Injections L carnitine Injection TACOMA VET MEDICATIONS L carnitine is effective for both fat loss and athletic performance. However, oral L carnitine has lower bioavailability and can be harmful at high doses, so it should be avoided. Even cardiologists give IV