“…For example, hypocalcemia can arise at any age and affects the majority (>60%) of adult patients [Cheung et al, 2014b; McDonald-McGinn et al, 2015]. While often asymptomatic, hypocalcemia can be associated with neuropsychiatric symptoms, including irritability, fatigue, tremor, muscle cramps, stiffness, and seizures [Bassett et al, 2011; Kao et al, 2004; Weinzimer 2001; Yu 2014]. Notably, some anticonvulsants, e.g., carbamazepine, phenytoin, may diminish vitamin D levels [Teagarden et al, 2014], potentially increasing the risk of hypocalcemia [Cheung et al, 2014b] and its associated complications.…”