Successive thyroid storms treated with L carnitine and low doses of Methimazole The American Journal of Medicine How Should I Use Thyroid Supplements? Balancing l carnitine and ala for thyroid health l Carnitine Supplementation in Recovery after Exercise There are 3 main types of thyroid medications available T4 T3 (usually combined with T4) NDT desiccated thyroid (a combination of T4 + T3) Most are widely available