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Which of the following medications is considered a controlled substance classified as Schedule V when mixed with other antitussive medications?

Diphenhydramine (Benadryl).

Codeine (Co-Caf).

Benzonatate (Tessalon Perles).

Guaifenesin (Mucinex).

Answer and Explanation

The Correct Answer is B

Choice A rationale

Diphenhydramine is an antihistamine used to relieve allergy symptoms.

Choice B rationale

Codeine is a narcotic pain reliever and cough suppressant classified as a Schedule V controlled substance when combined with other antitussive medications.

Choice C rationale

Benzonatate is a non-narcotic cough suppressant that numbs the throat and lungs.

Choice D rationale

Guaifenesin is an expectorant and not a controlled substance.

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Correct Answer is D

Explanation

Choice A rationale

Tumor enhancer genes is not a recognized term in oncology. DNA repair genes, along with proto-oncogenes and tumor suppressor genes, are critical in cancer development.

Choice B rationale

There are specific genes involved in cancer development, as mentioned in the other options.

Choice C rationale

Proto-oncogenes and tumor suppressor genes are both involved, but DNA repair genes also play a significant role.

Choice D rationale

Proto-oncogenes, tumor suppressor genes, and DNA repair genes collectively contribute to cancer development by either promoting or failing to prevent cell proliferation and damage repair.

A. Lisinopril. B. Naloxone (Narcan). C. Tetracycline. D. Morphine.

Correct Answer is D

Explanation

Choice A rationale

Lisinopril is an antihypertensive medication and is not classified as a controlled substance.

Choice B rationale

Naloxone (Narcan) is an opioid antagonist used to reverse opioid overdoses and is not a controlled substance.

Choice C rationale

Tetracycline is an antibiotic and not classified as a controlled substance.

Choice D rationale

Morphine is an opioid analgesic used for pain management and is classified as a controlled substance due to its potential for abuse and dependence.

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Which of the following medications is considered a controlled substance classified as Schedule V when mixed with other antitussive medications?

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