Levonorgestrel probably leads to lower specific side effects ‐ Vomiting compared with yuzpe (moderate certainty).
Single‐dose levonorgestrel showed no clear difference in specific side effects ‐ vomiting compared with split‐dose levonorgestrel (moderate certainty).
The review found no eligible studies for this question.
Low‐dose mifepristone (< 25 mg) showed no clear difference in specific side effect ‐ vomiting compared with levonorgestrel 1.5 mg (low certainty).
Ulipristal acetate (all doses) showed no clear difference in specific side effects ‐ vomiting compared with levonorgestrel (moderate certainty).