Which of the following is an ACE inhibitor?

Rationale

Fosinopril is an ACE inhibitor.

Fosinopril is classified as an ACE (Angiotensin-Converting Enzyme) inhibitor, which is a type of medication used primarily to treat high blood pressure and heart failure. It works by relaxing blood vessels, preventing the conversion of angiotensin I to angiotensin II, thereby lowering blood pressure.

A (Nifedipine) YOUR ANSWER

Nifedipine is a calcium channel blocker used to treat hypertension and angina. It functions by inhibiting calcium influx into vascular smooth muscle and cardiac tissue, leading to vasodilation. Unlike ACE inhibitors, nifedipine does not affect the renin-angiotensin system and thus is not classified as an ACE inhibitor.

B (Fosinopril) CORRECT

Fosinopril is indeed an ACE inhibitor, which specifically targets the angiotensin-converting enzyme to manage blood pressure and heart failure. Its mechanism of action distinguishes it from other types of antihypertensive medications, making it effective in reducing cardiovascular risks associated with hypertension.

C (Fluoxetine) YOUR ANSWER

Fluoxetine is an antidepressant of the selective serotonin reuptake inhibitor (SSRI) class, primarily used to treat depression, anxiety, and certain other mood disorders. It does not have any action on the renin-angiotensin system and therefore has no relation to ACE inhibitors.

D (Donepezil) YOUR ANSWER

Donepezil is a medication used to treat symptoms of Alzheimer's disease by inhibiting the breakdown of acetylcholine, a neurotransmitter involved in memory and cognition. It is not related to blood pressure regulation and does not function as an ACE inhibitor.

Conclusion

Fosinopril stands out as the only ACE inhibitor among the listed options, functioning specifically to regulate blood pressure through inhibiting the angiotensin-converting enzyme. The other choices—nifedipine, fluoxetine, and donepezil—belong to entirely different drug classes, with distinct mechanisms of action unrelated to ACE inhibition. Understanding these differences is crucial for effective pharmacological treatment in various medical conditions.

Which of the following is an ACE inhibitor?

Fosinopril is an ACE inhibitor.

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