There is no such thing as the most effective medication for constipation, and the exact efficacy varies from person to person and from condition to condition. Drugs for constipation are usually volumetric, stimulant, osmotic, lubricating laxatives.
1. Volumetric laxative: refers to not be absorbed by the intestinal wall, through the absorption of water in the intestinal tube after the expansion, thereby increasing the amount of stool, expanding intestinal volume, stimulate intestinal peristalsis, cause bowel reflex, and then play a class of drugs to relieve the symptoms of constipation, such as magnesium sulfate, sodium sulfate. After oral intake may appear diarrhea, nausea, vomiting and other symptoms.
2. Osmotic laxatives: such as polyethylene glycol, lactulose, etc., after oral intake in the intestinal formation of hypertonic salt solution, so that the intestinal lumen of increased water, increased volume, stimulate the intestinal mucosa, causing intestinal peristalsis enhancement and defecation. Diarrhea, abdominal pain and other symptoms may occur after oral intake.
3. Stimulating laxatives: such as phenolphthalein suppositories, senna and other stimulating light laxatives itself or its metabolites in the body to stimulate the intestinal wall, so that intestinal peristalsis to strengthen and promote defecation. After oral intake may appear nausea, diarrhea and other adverse reactions.
3. Lubricating laxatives: such as cecrops, glycerin laxatives, etc., can act directly on the rectum, lubricate the intestinal tract to soften the feces, effectively relieve the symptoms of constipation. After the application of abdominal pain, diarrhea and other adverse reactions may occur.
All of the above drugs should be applied under medical supervision. If symptoms of constipation exist, it is recommended to go to the hospital for treatment as soon as possible.