What is the brand name of amphetamine and dextroamphetamine salts?
Focalin
Vyvanse
Adderall
Ritalin
The Correct Answer is C
A. Focalin is the brand name for dexmethylphenidate, which is the d-threo-enantiomer of methylphenidate. It acts primarily as a dopamine and norepinephrine reuptake inhibitor. It does not contain the sulfate or saccharate salts of the amphetamine molecule found in the question.
B. Vyvanse contains lisdexamfetamine dimesylate, a prodrug converted to dextroamphetamine in the blood. While it provides dextroamphetamine, it is a single-molecule formulation rather than a mixture of salts. It lacks the levoamphetamine component found in the mixed salt combination.
C. Adderall is the proprietary name for a combination of 4 different amphetamine salts. It specifically consists of dextroamphetamine saccharate, dextroamphetamine sulfate, amphetamine aspartate monohydrate, and amphetamine sulfate. This mixture provides a specific ratio of 3 to 1 dextroamphetamine to levoamphetamine.
D. Ritalin is the brand name for methylphenidate hydrochloride, a central nervous system stimulant. Its mechanism involves the inhibition of the dopamine transporter and norepinephrine transporter. It is chemically distinct from the phenethylamine derivatives found in amphetamine and dextroamphetamine salt mixtures.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Memantine hydrochloride functions as an N-methyl-D-aspartate receptor antagonist specifically indicated for the management of moderate to severe Alzheimer disease. It does not possess opioid receptor affinity. This pharmacological profile is entirely distinct from the therapeutic class of Methadose.
B. Methadose is a proprietary brand name for methadone hydrochloride, a synthetic mu-opioid receptor agonist. It is clinically utilized for chronic pain management and opioid detoxification programs. The chemical nomenclature directly corresponds to this specific long-acting synthetic opioid analgesic.
C. Morphine sulfate is a natural phenanthrene alkaloid derived from the opium poppy. While it shares the mu-opioid agonist mechanism, it is marketed under brand names such as MS Contin or Kadian. It is not the active moiety in Methadose.
D. Montelukast sodium is a selective leukotriene receptor antagonist that inhibits the cysteinyl leukotriene CysLT1 receptor. It is indicated for prophylaxis of asthma and allergic rhinitis. It lacks any structural or functional relationship to the opioid analgesic methadone.
Correct Answer is A
Explanation
A. Fluconazole is a triazole antifungal agent that selectively inhibits the fungal cytochrome P450 enzyme 14-alpha-demethylase. This inhibition prevents the conversion of lanosterol to ergosterol, a critical component of the fungal cell membrane. The resulting membrane instability leads to fungistatic activity.
B. Antipsychotic medications typically target dopaminergic or serotonergic receptors in the central nervous system to manage psychosis. Fluconazole lacks affinity for these neural receptors and does not modulate dopamine levels. It is not indicated for the treatment of psychiatric disorders.
C. Antilipemic agents, such as statins, inhibit HMG-CoA reductase to lower systemic cholesterol levels in humans. While fluconazole affects sterol synthesis in fungi, it does not significantly impact human lipid metabolism at therapeutic doses. It is not used to treat hyperlipidemia.
D. Antibacterial drugs target specific prokaryotic structures or processes, such as the 70S ribosome or peptidoglycan cell wall synthesis. Fluconazole is ineffective against bacteria because they do not utilize ergosterol in their membranes. It is strictly categorized as an antifungal agent.
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