MLN and hereditary sensory and autonomic neuropathy: In many, the severity of symptoms leads with time to the need for home-based parenteral nutrition.3 The prokinetic, cisapride, has been studied in patients with CIP, and was modestly better than placebo in improving symptoms in adults.7 In an uncontrolled study, erythromycin, a motilin analogue, caused a decrease in vomiting and improved bowel function in some patients with primary and secondary CIP.8