Hypothyroidism With Normal TSH? Thyroid Hormone Conversion Explained Is it safe to take L carnitine with levothyroxine (thyroid medication)? L carnitine supplementation for the management of fatigue in patients with hypothyroidism on levothyroxine treatment: a randomized, double blind, placebo controlled trial. Semantic Scholar Successive thyroid storms treated with L carnitine and low doses of Methimazole The American Journal of Medicine Comprehensive review of the expanding roles of the carnitine pool in metabolic physiology: beyond fatty acid oxidation Journal of Translational Medicine Springer Nature Link