All of the following statements regarding Dronabinol are correct except?
Appeared in: INI-CET EXAM -2025
Explanation
The statement that Dronabinol is excreted unchanged in the urine is incorrect.
Dronabinol is a highly lipophilic drug that undergoes extensive first-pass metabolism in the liver by the cytochrome P450 enzyme system.
It is converted into active and inactive metabolites.
These metabolites, not the unchanged drug, are then excreted from the body, primarily via the feces and to a lesser extent in the urine.
Why Other Options Were Wrong
Option A: This is a correct statement. While not a primary FDA-approved indication for Dronabinol itself, cannabinoids as a drug class are recognized for their analgesic properties and are used in the management of chronic and neuropathic pain.
Option C: This is a correct statement. Dronabinol is a synthetic form of delta-9-tetrahydrocannabinol (THC), the primary psychoactive component of cannabis. Its therapeutic effects are mediated by acting as an agonist at cannabinoid receptors, primarily the CB₁ receptors found in the central nervous system.
Option D: This is a correct statement. Dronabinol is FDA-approved for the treatment of anorexia associated with weight loss in patients with Acquired Immunodeficiency Syndrome (AIDS). It acts as an appetite stimulant in this population.
Related Visual
Visual 1: Table - A summary table of Dronabinol's pharmacokinetics (Absorption, Distribution, Metabolism, Excretion) to clearly show it is metabolized and not excreted unchanged.
Visual 2: Diagram - A simple diagram of the endocannabinoid system showing the CB1 and CB2 receptors to illustrate the drug's mechanism of action.
Clinical Relevance
Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pharmacology of Dronabinol as background academic context rather than a clinical decision trigger.
Nurses administering Dronabinol must monitor for common side effects, including CNS effects like drowsiness, dizziness, confusion, and euphoria. Patients should be cautioned against driving or operating heavy machinery.
Cardiovascular effects such as tachycardia and hypotension can occur, requiring monitoring of heart rate and blood pressure, especially in patients with pre-existing heart conditions.
Patient education is crucial. The nurse should explain that the drug is intended to help with appetite or nausea and discuss potential psychoactive effects.
How to Approach the Question
First, identify that the question uses the word 'except'. This means you are looking for the statement that is FALSE.
Read the stem of the question to identify the core subject: the drug Dronabinol.
Evaluate each option independently based on your knowledge of pharmacology.
Option A: Recall the uses of cannabinoids. Are they used for pain? Yes.
Option B: Consider the pharmacokinetics. Are drugs, especially lipophilic ones, often excreted unchanged? No, they are usually metabolized first. This should be a red flag.
Option C: Think about the drug class. Dronabinol is a cannabinoid. How do they work? By acting on cannabinoid receptors.
Concept Tested & Keywords
Concept Tested: Pharmacology of Dronabinol
Stem keywords: Dronabinol, pharmacology
Lead-in keywords: except
Negative lead-in flag: This is a negative-lead-in question, asking you to identify the INCORRECT statement.
Question ID
QsiooyvD66OnnZI70oWb6c
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Attempt every question from this paper in a timed mock, then review the full solution for each one.