J Ethnopharmacol. 2012 Jul 13;142(2):354-61.
Gastrokinetic activity of Morinda citrifolia aqueous fruit extract and its possible mechanism of action in human and rat models.
Nima S, Kasiwong S, Ridtitid W, Thaenmanee N, Mahattanadul S.
Plasma ranitidine concentration-time curve and the maximal plasma ranitidine concentration in human volunteers were significantly increased with a noni fruit extract pretreatment. Noni fruit extract also produced a definite contractile response by a rat gastric fundus strip. These results suggest noni has a unique gastrokinetic activity and potential increases GI motility. (original abstract available at https://www.sciencedirect.com/science/article/pii/S0378874112002711).