Plan B, commonly known as the "morning-after pill," is used as a form of emergency contraception to prevent pregnancy after unprotected sex or failed contraception. It contains levonorgestrel, a synthetic hormone that helps prevent ovulation or fertilization, but it is not effective if a pregnancy has already begun.

Alesse is used to prevent ovulation and pregnancy.

Levlen is a hormonal oral contraception medication, it prevents ovulation and pregnancy.

I-Pill is used as an emergency contraceptive tablet in the event of unsafe intercourse or failure of contraception, to avoid unintended pregnancy. Within 24-72 hours after having unprotected sex, the emergency contraceptive pill must be taken. It is best to take the pill orally. Often, the faster you take the drug, the quicker it is because the pill becomes less successful as time passes. It is recommended that most of these pills be taken within 72 hours.