A combination pill is an oral contraceptive pill that contains estrogen and progestin. Combination pills are the most common form of oral birth control, and are commonly referred to simply as "the pill."
More About Combination Pill
Each brand or type of pill will contain a different combination dose of estrogen and progestin. The combination of hormones within the pill suppresses ovulation; which means that it keeps the ovaries from releasing an egg. Depending on the dose, some pills extend the ovulation cycle, allowing for fewer menstruation periods. Typically, oral contraceptives must be taken every day to be effective, and do not protect against STIs or HIV.
