Combined oral contraceptive pills (COCPs) : Monophasic versus Triphasic pills

Combined oral contraceptive pills (COCPs) are a popular method of contraception that contain both estrogen and progestin. These pills can be categorized into monophasic and triphasic types, based on the hormone dosage throughout the cycle.

Monophasic COCPs deliver the same dose of estrogen and progestin in each active pill, providing consistent hormone levels throughout the 21 or 28-day cycle. This uniformity makes them simple to use and allows for predictable control of menstrual cycles and side effects.

Triphasic COCPs, on the other hand, contain varying doses of hormones in three distinct phases over the active pill cycle. This variation is designed to more closely mimic the natural hormonal fluctuations of a woman's menstrual cycle, which can potentially reduce side effects like breakthrough bleeding and offer better cycle control for some users.

Feature	Monophasic Pills	Triphasic Pills
Definition	Contain the same dose of estrogen and progestin in each active pill.	Contain three different doses of hormones that change approximately every week during the cycle.
Dosage Pattern	Consistent hormone levels throughout the cycle; typically 21 active pills followed by 7 placebo pills.	Varying hormone levels in three phases over the 21-day active pill cycle, followed by 7 placebo pills.
Advantages	Simple...

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