Acetyl l carnitine plus propionyl l carnitine improve efficacy of sildenafil in treatment of erectile dysfunction after bilateral nerve sparing radical retropubic prostatectomy Urology Propionyl L carnitine hydrochloride CAS 119793 66 7 SCBT Santa Cruz Biotechnology L Carnitine Tartrate Does It Help Burn Fat? AS IT IS Nutrition Does L Carnitine Help with Erectile Dysfunction? Did you know L carnitine, a vital amino acid, is naturally produced by your body and found in various foods? While acetyl L carnitine (ALCAR) can be a beneficial supplement for some, most people get