Background Epilepsy is a central nervous system disorder characterized by abnormal electrical activity in the brain. 1 Prolonged administration of valproic acid at therapeutic doses can disrupt thyroid function. leading to subclinical hypothyroidism. This condition is marked by elevated thyroid stimulating hormone (TSH) levels. https://www.roneverhart.com/5-15P-ANGLE-PLUG-B-W-HUBBELL-HBL5266CA/