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.
Laxatives are designed to stimulate your intestines and make a bowel movement come, but stool softeners simply soften stool. These are slightly different functions, but it makes laxatives and stool softeners very different. Someone suffering from constipation should not use a stool softener.