the Contraceptive Effects of Menstrual Regulation Medications - Obstetrics and Gynecology

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Contraceptive pills and menstrual regulation medications?


Recently, I experienced irregular menstrual cycles, and my doctor prescribed me medication to regulate my periods.
I started taking Premarin 0.625 mg, two tablets daily, beginning on the fifth day of my cycle.
I usually take them after dinner for 12 days.
On the 13th day, I began to add FUAN TABLETS 5 MG "CHINTENG," taking one tablet in the morning and continuing with two tablets of Premarin 0.625 mg in the evening for another 12 days, after which I will stop the medication to allow my period to come naturally.

I would like to ask the doctor if this medication for regulating my menstrual cycle also has contraceptive effects.
When I previously asked the prescribing doctor, they mentioned that it is unlikely to result in pregnancy, but I found this answer somewhat vague.
Can you clarify whether this combination of medications has contraceptive effects? If not, can I safely combine it with contraceptive pills like YAZ, Alesse, or others, as I currently do not plan to conceive?

Abriss, 20~29 year old female. Ask Date: 2017/10/16

Dr. Zhang Kunmin reply Obstetrics and Gynecology


Hello, the dosage and method of administration of the menstrual regulation medication you are currently taking also have effects on ovulation suppression and contraception.
However, since the dosage is higher than that of standard contraceptive pills and the components differ, there is a greater likelihood of hormonal side effects.
Therefore, it is not recommended for women who only need contraception to use it long-term.
Thank you! Wishing you peace and health, Dr.
Chang.

Reply Date: 2017/10/16

More Info


When it comes to understanding the contraceptive effects of menstrual regulation medications, it's essential to clarify the roles of the medications you mentioned: Premarin (conjugated estrogens) and FUAN TABLETS (which may contain various herbal or hormonal ingredients).
Premarin is primarily used for hormone replacement therapy and can help regulate menstrual cycles, especially in women experiencing irregular periods. It works by providing estrogen, which can help to stabilize the endometrial lining and promote regular shedding during menstruation. However, it is not classified as a contraceptive. While it may influence the menstrual cycle, it does not prevent ovulation or fertilization, which are the primary mechanisms of contraceptive methods.

On the other hand, FUAN TABLETS, depending on their specific composition, may have varying effects. If they contain herbal ingredients, their efficacy in preventing pregnancy is not well-established in clinical studies. Therefore, relying on them as a contraceptive method would not be advisable.

Your doctor’s statement that "basically, you won’t get pregnant" is indeed vague and may stem from the understanding that these medications are not designed for contraception. However, it is crucial to note that without a reliable contraceptive method, there is still a risk of unintended pregnancy, especially if you are not using any additional forms of birth control.

If you are considering using hormonal contraceptives like Yaz (which contains drospirenone and ethinyl estradiol) or other similar birth control pills alongside your menstrual regulation medications, it is generally possible to do so. However, it is vital to consult with your healthcare provider before combining these medications. They can provide guidance on the appropriate timing and dosage to ensure that the hormonal effects do not interfere with each other.
Moreover, combining different hormonal medications can sometimes lead to increased side effects, such as nausea, headaches, or mood changes. Your healthcare provider can help you assess the risks and benefits based on your medical history and current health status.

In summary, while Premarin and FUAN TABLETS may help regulate your menstrual cycle, they do not provide reliable contraception. If you wish to avoid pregnancy, it is advisable to use a dedicated contraceptive method, such as birth control pills, condoms, or other forms of contraception. Always consult your healthcare provider for personalized advice tailored to your specific situation.

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