Tell me roughly speaking Lactulose please?

How does lactulose work when used in hyperammonaemic coma?
We have need of to know how lactulose reduces Blood Ammonia concentration. Please quote source.if you are a graduate.permit us know your degree. Thanks!
lately fyi, we are also looking, we want to know what you think! lactulose loss of face by gut normal flora creates an sour PH that inhibits NH3 absorption by conversion to NH4+ . then again it enhances diffusion of NH3 from the blood stream to the gut and entraping it as NH4+.
Clinical Pharmacist
www.nlm.nih.gov/medlineplus/dr.
www.pdrhealth.com/drug_info/nm.
www.endowsec.com/pated/lactulo.
www.medicationadvisor.com/side.
www.rxcarecanada.com/Lactulose.
it hals on l lin lit