Question:easy
What is the dose of ulipristal acetate?
What is the dose of ulipristal acetate?
Show Hint
One tablet, milligrams not micrograms, for emergency contraception.
Updated On: Jun 23, 2026
- 300mg
- 30mg
- 300µg
- 30µg
Show Solution
The Correct Option is B
Solution and Explanation
Step 1: Ulipristal acetate works at the progesterone receptor to postpone ovulation and, later in the cycle, to alter the endometrium - this is its emergency contraceptive action after unprotected intercourse.
Step 2: The licensed regimen is a single tablet of $30$ mg, ideally taken promptly and no later than 120 hours after the act of intercourse.
Step 3: Doses expressed in micrograms are several orders of magnitude too low, and 300 mg overshoots the labelled amount, so the single 30 mg tablet is the correct dose.
\[\boxed{30\ \text{mg}}\]
Step 2: The licensed regimen is a single tablet of $30$ mg, ideally taken promptly and no later than 120 hours after the act of intercourse.
Step 3: Doses expressed in micrograms are several orders of magnitude too low, and 300 mg overshoots the labelled amount, so the single 30 mg tablet is the correct dose.
\[\boxed{30\ \text{mg}}\]
Was this answer helpful?
0
