All you need to know about combined birth control pills

Recently updated on February 3rd, 2023 at 09:03 am

Combination birth control pills are oral contraception that is composed of two female synthetic hormones called “estrogen” and “progestin”, which are similar to the natural ones produced in a woman’s body.

Unlike estrogen, several types of progestin can be found in different brands of combination pills. Your doctor may or may not require a pelvic exam and pap smear in order to prescribe these pills. They might give you birth control pills on the basis of the reading of any medical history or BP measurement [ blood pressure].

Types of combined contraception pills

There are many known brands of combined birth control pills like Ovral, Loette, Yasmin, etc. The pills, however, do not have the same formulations. They are classified as monophasic, biphasic, and triphasic depending on whether the hormone levels remain constant during the initial three weeks of the menstrual period or if it changes.

For e.g. If you order Ovral contraceptive pill, you should know that it is a high-dose monophasic type of birth control.

Birth control pack size

Combined contraceptive pills typically come in the 1-month supply. They are usually available in 21- days and 28- days pack.

Both versions of the pack contain 21 active pills. These active pills are different in color from the remaining placebo tablets. These active tablets contain the hormones that prevent pregnancy.

28-day pack

In this type of pack, the last seven tablets are known as “placebo pills” or “remainder tablets”.

They do not contain any hormones. These tablets are taken during the 4th week, and their purpose is to help the women maintain her daily routine of taking the pill at the exact same time every day. Therefore, a woman will take a pill each day during the four weeks cycle.

Many women buy Ovral online in 28-pill packs because they feel comfortable with the daily dosage.

21-day pack

In this type of pack, the pills are taken for the initial three weeks. During the 4th week, the woman takes nothing. She will start a new pack of pills after eight days after completing the previous pack.

Many brands like Loette, Yasmin, Ovral G, Ovral have both 21 and 28-day versions. You must be careful in remembering to take the pill at the exact time on the exact day.

24 days pack

This type of pack contains 24 active ingredient tablets and four placebo tablets.

Extended cycle pills

The extended cycle combination contraceptive tablets have more pills in each pack. This type of contraceptive pill can allow you to completely avoid your periods or lower the occurrence of your menstrual cycle. Studies have shown how extended-cycle pills are safe and good for women who have menstrual-related problems.


When using combined birth control pills, women will experience withdrawal bleeding during the 4th week. This is because hormone inflow from the pills is stopped suddenly after 21 days, which results in uterine lining shedding. The active pills work throughout the month; therefore, the woman is protected against pregnancy even in her fourth week [ with or without placebo pills].

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