If you vomit at 24hr( not 2hror 4hr as noted) but literally 1day after taking plan b, should dose be repeated?

https://planb.ca/en/what-to-expect https://www.fphandbook.org/giving-emergency-contraceptive-pills It appears that if 24 or more you should have absorbed the medication and would not need to repeat dosing . F/u/ w/ MD and or planned paretnhood.

If your question is whether the effectiveness of the original "plan B" dose will be reduced, the absorption of the hormones in the "plan B" will have been absorbed well prior to 24 hours later. " Plan B" is not 100% certain in prevention of pregnancy, so if your period is delayed, a serum HCG test will detect even low levels of pregnancy hormone.