Medical Pharmacology: Gastrointestinal Pharmacology Practice Questions
Choose the correct answer for each question.
Sodium picosulfate:
- Activated in the colon by bacteria, this agent acts only in the colon.
- Used for cleansing prior to colonoscopy..
- Both
- Neither
Important adverse effects due to sodium picosulfate (diphenylmethane derivative):
- Decreased glomerular filtration rate..
- Elevated magnesium levels
- Both
- Neither
Anthraquinone laxative(s):
- Aloe
- Cascara
- Both
- Neither
Senna is an example of an anthraquinone laxative.
- True
- False
Chronic use of senna may result in melanosis.
- True
- False
Adverse effect(s) of senna use:
- Abdominal cramping
- Nausea and vomiting
- Both
- Neither
Aloe and cascara products are not generally recognized as safe and effective for over-the-counter consumption by the FDA.
- True
- False
Castor oil is no longer recommended as a laxative given its unpleasant taste in potential toxicities on intestinal epithelium and enteric neurons.
- True
- False
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