A 27-year-old woman with amenorrhea, infertility, and galactorrhea was treated with a drug that successfully restored ovulation and menstruation. Before being given the drug, the woman was carefully questioned about previous mental health problems, which she did not have. The drug used to treat this patient was probably:

Correct Answer: A

Rationale: Bromocriptine (choice A), a dopamine agonist, treats hyperprolactinemia (causing amenorrhea, infertility, galactorrhea) by inhibiting prolactin, restoring ovulation. Mental health screening avoids psychosis risk. Desmopressin (choice B), HGH (choice C), and Octreotide (choice D) target different conditions. Bromocriptine fits the scenario.

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: B

Rationale: Ethinyl estradiol (choice B) is the synthetic estrogen in most combined oral contraceptives (COCs), paired with progestins for ovulation suppression and cycle control, due to its potency and oral bioavailability. Clomiphene (choice A) induces ovulation, Estrone (choice C) is weaker and not used, Norgestrel (choice D) is a progestin. Ethinyl estradiol's widespread use reflects its efficacy in contraception, critical for understanding COC pharmacology and patient counseling.

Correct Answer: D

Rationale: Raloxifene (choice D), a SERM, prevents postmenopausal osteoporosis by acting as an estrogen agonist on bone, increasing density, and antagonist on breast/uterus. Renal failure (choice A), hypoparathyroidism (choice B), and intestinal osteodystrophy (choice C) involve different therapies. Osteoporosis is its primary indication.