Biphasic COCs

Definition

Biphasic COCs are combination oral contraceptives that contain two different doses of hormones in the active pills. These adjustments are meant to more closely mimic the natural menstrual cycle.

5 Must Know Facts For Your Next Test

1. Biphasic COCs typically change hormone levels halfway through the cycle to reduce side effects and maintain efficacy.
2. They usually contain both estrogen and progestin, but the dose of one or both hormones changes once during the cycle.
3. These pills are designed to provide better cycle control and reduce menstrual irregularities compared to monophasic pills.
4. Common side effects include nausea, breast tenderness, and breakthrough bleeding, similar to other COCs.
5. Patients should take these pills at the same time every day for maximum effectiveness.

Review Questions

• What is the primary purpose of having two different hormone doses in Biphasic COCs?
• Name two benefits of using Biphasic COCs compared to monophasic COCs.
• What are common side effects associated with Biphasic COCs?

Related terms

Monophasic COCs: Combination oral contraceptives with a constant dose of hormones throughout the entire cycle.

Triphasic COCs:

Combination oral contraceptives that have three different doses of hormones throughout the cycle.

Progestin-only Pills (POPs): Oral contraceptives that contain only progestin and no estrogen.