Promotility agents http://www.geneed.com/website/catalog/glossary_search.php?id=3046&search_term=promotility%20agents&select=TRUE,
Karamanolis G, Tack J (2006). "Promotility medications—now and in the future". Dig Dis. 24 (3–4): 297–307. doi:10.1159/000092883. PMID 16849857. https://doi.org/10.1159%2F000092883
Ozaki K, Yogo K, Sudo H, et al. (2007). "Effects of mitemcinal (GM-611), an acid-resistant nonpeptide motilin receptor agonist, on the gastrointestinal contractile activity in conscious dogs". Pharmacology. 79 (4): 223–35. doi:10.1159/000101537. PMID 17426410. S2CID 30826969. /wiki/Doi_(identifier)
The Conclusion of the cited reference does not indicate that there was no benefit. On the contrary, the study said there was an increase in gastric emptying. McCallum RW, Cynshi O (Oct 2007). "Clinical trial: effect of mitemcinal (a motilin agonist) on gastric emptying in patients with gastroparesis - a randomized, multicentre, placebo-controlled study". Aliment. Pharmacol. Ther. 26 (8): 1121–30. doi:10.1111/j.1365-2036.2007.03461.x. PMID 17894654. https://doi.org/10.1111%2Fj.1365-2036.2007.03461.x