| Plan B:
Progestin-Only EC |
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| • | Levonorgestrel
0.75 mg taken twice, 12 hours apart |
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| (traditional,
two-dose administration) |
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| • | Unlabeled
equivalent |
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| – | 20 pills/dose
of Ovrette taken 12 hours apart |
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| • | More
effective/fewer side effects than Yuzpe |
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| • | Data indicate
a single dose of 1.5 mg levonorgestrel is as |
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| effective and
causes similar side effects as traditional two- |
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| dose
levonorgestrel |
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| • | Mechanism of
action is inhibition of ovulation |
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| von Hertzen
H, et al. Lancet. 2002;360:1803-1810. |
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| Ellertson C.
Fam Plann Perspect. 1996;28(2):44-48. |
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| ACOG
Practice Bulletin. Int J Gynecol Obstet. 2002;78:191-198. |
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| Arowojolu
AO, et al. Contraception. 2002;66:269-273. |
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| Marions L, et al.
Obstet Gynecol 2002;100:65-67. |
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