“…However, whether the effects of these drugs are helpful for long-term control of HIDA domain symptoms is unclear. The evidence for other pharmacological approaches either does not support their use, as is the case for VPA, or is in its infancy, as is the case for AVP-923 (Fhager et al, 2003; Weiner et al, 2005; Birks, 2006; Howard et al, 2007; Kyomen et al, 2007; Ballard et al, 2009; Ng et al, 2009; Rodda et al, 2009; Sommer et al, 2009; Mowla and Pani, 2010; Lockhart et al, 2011; Gallagher and Herrmann, 2014; Cummings et al, 2015; Suzuki and Gen, 2015; Baillon et al, 2018; Kongpakwattana et al, 2018; Sherman et al, 2018; McShane et al, 2019; Supasitthumrong et al, 2019). Overall, substantial improvement is needed to increase the efficacy and reduce the side effects of pharmacotherapies for HIDA domain symptoms.…”