Loestrin 24 Fe: Understanding Monophasic Birth Control Pills

Loestrin 24 Fe is a _monophasic_ oral contraceptive pill. This means that all 24 of its active (hormone-containing) pills contain the same amount of estrogen and progestin. This is in contrast to _triphasic_ or _multiphasic_ pills, which contain different levels of hormones in each pill, depending on where the user is in their menstrual cycle.