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Bisacodyl is an organic compound that is used as a stimulant laxative drug. It works directly on the colon to produce a bowel movement. It is typically prescribed for relief of episodic and chronic constipation and for the management of neurogenic bowel dysfunction , as well as part of bowel preparation before medical examinations, such as for ...
Thus, there remains lingering doubt about the mechanisms of ethanol listed here, even for the GABA A receptor, the most-studied mechanism. [24] In the past, alcohol was believed to be a non-specific pharmacological agent affecting many neurotransmitter systems in the brain, [25] but progress has been made over the last few decades.
Sodium picosulfate is a prodrug. [5] It has no significant direct physiological effect on the intestine; however, it is metabolised by gut bacteria into the active compound 4,4'-dihydroxydiphenyl-(2-pyridyl)methane (DPM, BHPM).
A few drugs such as alcohol are absorbed by the lining of the stomach, and therefore tend to take effect much more quickly than the vast majority of oral medications which are absorbed in the small intestine. Gastric emptying time can vary from 0 to 3 hours, [2] and therefore plays a major role in onset of action for orally administered drugs ...
While its mechanism of action is not entirely clear, senna is thought to act by increasing fluid secretion within and contraction of the large intestine. [1] Sennosides come from the group of plants Senna. [3] In plant form, it has been used at least since the 700s AD. [7] It is on the World Health Organization's List of Essential Medicines. [8]
Illustration showing the hepatic portal vein system. The first pass effect (also known as first-pass metabolism or presystemic metabolism) is a phenomenon of drug metabolism at a specific location in the body which leads to a reduction in the concentration of the active drug before it reaches the site of action or systemic circulation.
Sodium citrate saline is one of the most effective osmotic laxatives (secondary in action only to magnesium citrate). [8] Its laxative action is the result of osmotic imbalance that extracts bound water from stool and pulls it back into the large bowel. The increased water content softens the stool and stimulates the bowel to contract (move its ...
Docusate is the common chemical and pharmaceutical name of the anion bis(2-ethylhexyl) sulfosuccinate, also commonly called dioctyl sulfosuccinate (DOSS). [2] [3] [4]Salts of this anion, especially docusate sodium, are widely used in medicine as laxatives and as stool softeners, by mouth or rectally. [1]