l-carnitine hormone supplementation at doses of 2–4 g/day has been shown in a randomized, double-blind, placebo-controlled trial by Salvatore Benvenga to reverse and prevent symptoms of iatrogenic hyperthyroidism in women receiving TSH-suppressive levothyroxine difference between l-carnitine and l-arginine

Treatment outcomes for methamphetamine users receiving outpatient counselling in the Stimulant Treatment Program in Australia

Infusionsther Klin Ernahr 13:268276 Rssle C, Pichard C, Roulet M, Chiolero R, Schutz Y, Temler E, Schindler C, Zurlo F, Jquier E, Frst P (1988) Effect of l-carnitine supplemented total parenteral nutrition on postoperative lipid and nitrogen utilization

There are 3 moderate contraindications

Alshaikh MK, Tricco AC, Tashkandi M, Mamdani M, Straus SE, BaHammam AS

The catabolic transsulfuration pathway converts homocysteine to cysteine via two vitamin B 6 -dependent enzymes: cystathionine synthase catalyzes the condensation of homocysteine with serine to form cystathionine, and cystathionine lyase converts cystathionine to cysteine, -ketobutyrate, and ammonia