18 Questions
What is the primary mechanism of action of octreotide?
Inhibits gastrointestinal motility and secretions
Which of the following is a contraindication for the use of octreotide?
Insulin-dependent diabetes mellitus
What is the primary indication for scopolamine?
Anti-motion sickness
Which of the following is a mechanism of action for a laxative?
Absorbs water in the gastrointestinal lumen, increasing stool bulk
What is the primary mechanism of action of neuromuscular-blocking agents?
Competitively block acetylcholine at nicotinic receptors
How does scopolamine compare to atropine in terms of duration of action?
Scopolamine has a longer duration of action than atropine
Which of the following is a mechanism of action for the antidiarrheal drug loperamide?
Inhibits the release of acetylcholine and prostaglandins
What is a potential adverse drug reaction associated with the bile salt-binding resin cholestyramine?
Blood in the urine or black, tarry stools
Which of the following drugs is a depolarizing neuromuscular blocking agent?
Succinylcholine
What is the mechanism of action of the anticholinergic drugs ipratropium and tiotropium?
Antagonize muscarinic acetylcholine receptors
Which of the following is an antidote for the depolarizing neuromuscular blocking agent succinylcholine?
Succimer
What is a potential adverse drug reaction associated with the antidiarrheal drug loperamide?
Constipation
What is the mechanism of action of topotecan?
Inhibits topoisomerase I, resulting in DNA damage
Which of the following is an indication for topotecan?
Small cell lung cancer
What is the mechanism of action of paclitaxel?
Interferes with microtubule disassembly, resulting in impaired mitosis
What is an acute adverse drug reaction associated with paclitaxel?
Nausea and vomiting
What is the mechanism of action of anticholinergic agents?
Bind to muscarinic receptors and block the effects of acetylcholine
What is an indication for the antimuscarinic agent atropine?
Antispasmodic agent
Test your knowledge of pharmacology with this quiz covering topics such as parasympatholytic effects, depolarizing agents, and antidiarrheals/laxatives. Learn about their mechanisms of action, indications, adverse drug reactions, and antidotes.
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