just a question as Im unclear... why did you change formula? was it because of the reflux or because you were concerned about the colour of her poo? If she liked the Nuture and could keep it down, then I wouldnt be worried about the colour of her poo... how is she now? I wouldnt give coloxyl or any oral laxative as they can promote lazy bowels and also give tummy pains (but thats just me). Suppositories are not a laxative just soften the stools ... good luck