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Pharmacology Presentation Drugs Practice Test

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Which hormone derivative is the estrogen component of Yasmin?
Correct Answer:
Ethinyl estradiol (EE)
Explanation:
The estrogen component in Yasmin is ethinyl estradiol. Ethinyl estradiol is a synthetic estrogen used in many combined oral contraceptives; it provides endometrial stabilization and, by supplying negative feedback to the hypothalamic-pituitary axis, helps suppress ovulation. Yasmin pairs this estrogen with drospirenone, a progestin that adds ovulation suppression and changes in cervical mucus and the endometrium. The other options mix up this role: drospirenone is the progestin, not the estrogen; saying ethinyl estradiol is a progestin is incorrect; and levonorgestrel is another progestin used in different formulations.

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