L Carnitine Benefits Patients with Hypothyroidism Natural Health Research Successive thyroid storms treated with L carnitine and low doses of Methimazole The American Journal of Medicine The Role of l Carnitine in Mitochondria, Prevention of Metabolic Inflexibility and Disease Initiation Hi all, just a question to ask if anyone who is on Levothyroxine for underactive thyroid takes L Carnitine shots? This JAMA Patient Page describes hypothyroidism and its risk factors, signs and symptoms, diagnosis, screening, and treatment. https: ja.ma 4oSKMLL