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Many oral forms of medications can be crushed and suspended in water to be given via a rectal catheter. The rectal route of administration is useful for patients with any digestive tract motility problem, such as dysphagia, ileus, or bowel obstruction, that would interfere with the progression of the medication through the tract.
In standard medicine, the most frequent uses of enemas are to relieve constipation and for bowel cleansing before a medical examination or procedure; [5] also, they are employed as a lower gastrointestinal series (also called a barium enema), [6] to treat traveler's diarrhea, [7] as a vehicle for the administration of food, water or medicine ...
Bulk-forming laxatives, also known as roughage, are substances, such as fiber in food and hydrophilic agents in over-the-counter drugs, that add bulk and water to stools so they can pass more easily through the intestines (lower part of the digestive tract). [2] Properties. Site of action: small and large intestines; Onset of action: 12–72 hours
When Phospho soda is used as preparation for colonoscopy, 1.5 fluid ounces (45ml), mixed with an equal amount of water or any clear liquid and followed by 8 oz of water, is taken, followed by a second dose 6 hours later (3 oz total). It will cause very loose, eventually watery stools, usually starting within an hour or so and lasting several hours.
Other ingredients: citric acid, flavor, glycerin, methylparaben, propylparaben, purified water, sodium benzoate, sucrose; Non-alcoholic; Non-prescription; Acts within 6–12 hours. There are no known drug interactions, although as a stimulant laxative it may affect how long a medicine remains in the digestive tract.
Usually, laxatives are a consideration after lifestyle changes to relieve constipation, like taking up a regular exercise routine and increasing fiber or water intake, have already been tried.
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[5] [6] This compound is a stimulant laxative and increases peristalsis in the gut. [5] [7] Sodium picosulfate is typically prescribed in a combined formulation with magnesium citrate, an osmotic laxative. This combination is a highly effective laxative, often prescribed to patients for bowel cleansing prior to colonoscopies. [5] [8]