Carnitine Deficiency, Systemic Primary, also known as systemic primary carnitine deficiency, is related to abdominal obesity-metabolic syndrome 1 and homocystinuria, and has symptoms including muscle weakness An important gene associated with Carnitine Deficiency, Systemic Primary is SLC22A5 (Solute Carrier Family 22 Member 5), and among its related pathways/superpathways are Metabolism and Fatty acid metabolism. The drugs Quinidine and Dextromethorphan have been mentioned in the context of this disorder. Affiliated tissues include heart and skeletal muscle, and related phenotypes are muscle weakness and hepatomegaly