Plan B is an emergency contraceptive pill to prevent Pregnancy after intercourse. It works by giving the body a short, high, and burst of synthetic hormones. Plan B affects the ovaries and the development of the uterine lining, making pregnancy less likely. It prevents ovulation (the egg leaving the ovary and moving into the fallopian tube). It blocks the hormones needed for the egg to be able to be fertilized. It may affect the lining of the uterus and alters sperm transport which prevents sperm from meeting the egg and fertilizing it.
How to use this medicine:
Take EC within 120 hours of unprotected intercourse. Plan B may be taken after 120 hours, but its effectiveness is much lower. Or per the package insert, you can take one pill immediately and one 12 hours later.
The first dose of EC is taken within 120 hours of unprotected intercourse. The second dose is usually taken 12 hours later. EC may be taken after 120 hours, but its effectiveness is lower. Alternatively, both pills may be taken at the same time, as soon as possible after unprotected sex.
If you vomit within a half hour of taking EC, call your clinic. Vomiting can decrease the effectiveness of EC. To decrease nausea and vomiting take an anti-vomiting medication 30 minutes before taking the first dose. Some over the counter medications include Benadryl and Dramamine. Take as directed on the package. Both can cause drowsiness.Take EC with food, preferably a full meal.
