If you are using the Plan B emergency contraceptive, when should you take the two pills?

Within 72 hours. You must use ir within 72 hours of the episode of unprotected intercourse. Even then it is only 75% effective so you must take a pregnancy test if you are late with your period.
As soon as possible. After sexual intercourse. Plan B One-Step is up to 89 % effective when taken within 72 hours (3 days) after unprotected sex. It can reduce chance of pregnancy by up to 95% if used within 24 hours. It continues to reduce the risk of pregnancy up to 120 hours (5 days) after unprotected sex, but is less effective as time passes.

Related Questions

When you take plan b, (emergency contraceptive), are you supposed to get your period on schedule?

Plan B. Well, if you don't get your period within a week of anticipated date you should notify your gynecologist as it would be important to ensure that you are not pregnant.

What is the difference between the Plan B emergency contraceptive and regular birth control pills?

Mechanisms differ. Plan b is levonorgestrel. It alters the tubes to prevent passage of the eggs and sperm and prevent fertilization. It also alters the endometrium to prevent implantation. Birth control pills usually contain an estrogen and a progesterone. They suppress LH and FSH to prevent ovulation. They also alter the cervical mucous to prevent sperm from entering.
Not the same. Emergency contraception acts mainly by preventing ovulation, and is intended for only occasional or one-time use. Regular birth control pills also work by preventing ovulation, but they work on an ongoing basis for regular contraception (and require daily use). If you need emergency contraception, it's good to use it, but you should then consider ongoing birth control. See http://ec. Princeton.

Is it bad to take more than 1 Plan B one step emergency contraceptive in a 1 month time period?

Plan B 1 Step. Will still be as effective in this scenario but this points to the need to use a more consistently effective form of birth control.

I am taking oral cephalexin daily 4 times a day. Today I took Plan B pill (emergency contraceptive pill) is it bad to have those pills interact?

"Double trouble"? Taking these two pills together will make one of them ineffective due to selective gastric absorption. It will usually be the Plan B that doesn't get absorbed and then it fails to work with a doubling of your person with a child and undesired pregnancy. Separate the two pills by at least 2 hours when taking the Plan B.

What are common side effects of the Plan B emergency contraceptive?

Nausea. Usually nausea is the most common side effect of Plan B but also cramping and headaches as well.
Just few. Nausea, vomiting, vaginal bleeding, menstrual irregularities, abdominal pain, fatigue, headache, dizziness, breast tenderness, diarrhea.
Plan B. Potential Side effects w emergency contraception: tender breasts; menstrual flow changes (spotting, bleeding, early or late period); loose stools; dizziness; headache; nausea/ vomiting; abdominal pain / cramping or fatigue. For chest tightness, difficulty breathing, swelling of lips, mouth, throat – call 911. Take pregnancy test & notify Dr if your period is 7 or > days late.