New morning-after pill more effective, lasts for up to 5 days

LONDON: A new type of morning-after pill is more effective than the most widely used drug at preventing pregnancies in women who had unprotected sex and also works longer, for up to five days, a new study says.

The report was published Friday in the British medical journal, Lancet.

Levonorgestrel, the most widely used emergency contraceptive pill, is only effective if women take it within three days of having sex. It is sold under various brand names including Levonelle and Plan B, and is available in more than 140 countries, including the United States, Canada and many countries in western Europe. In nearly 50 of those countries women can get it without a prescription.