The correct dose of ulipristal acetate is 30mg.
This medication is often used as an emergency contraceptive and works by preventing ovulation. Its effectiveness is based on taking the correct dosage within a specified time period after unprotected intercourse or contraceptive failure. When considering the options:
- 300mg: This would be an excessively high dose for standard emergency contraceptive use.
- 30mg: This is the appropriate and widely accepted dose for ulipristal acetate in the context of emergency contraception.
- 300µg: This is significantly lower than the effective dose required for emergency contraception.
- 30µg: Again, much lower than needed for the intended indication.
Thus, the recommended dose from the available options aligns with 30mg for effective emergency contraception.