The pronunciation of some letters is dissimilar in European Portuguese and Brazilian Portuguese, because the Portuguese is a pluricentric language.
Laxatives (purgatives, aperients) are foods, compounds, or drugs taken to induce bowel movements or to loosen the stool most often taken to treat costipation . Certain stimulant, lubricant, and saline laxatives are used to evacuate the colon for rectal and/or bowel examinations, and may be supplemented by enemas under certain circumstances. Sufficiently high doses of laxatives cause diarrhoea. Laxatives work to increase the movement of fecal matter along the colon.
Rectal laxatives provide immediate relief and are a good alternative for someone who cannot take oral medication. Some enemas can work in 5 minutes or less, while suppositories work within an hour. Oral laxatives work over a longer period of time and can be used when immediate relief is not necessary.