Menstrual Regulation Medications: Your Questions Answered - Obstetrics and Gynecology

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Medication consultation. Menstrual bleeding. Menstrual regulation medications?


Hello, the obstetrician-gynecologist prescribed me a menstrual regulation medication.
I took Yisder tablets for four days and then took Puvira tablets for seven days.
I started to experience bleeding when I had three days left of the Puvira medication.
Initially, it was liquid, but now it resembles menstrual flow (1 to 4 times a day).
I have one and a half days of Puvira left; should I continue taking it? Also, I plan to go to the hospital for a blood test on the third day of my period.
Which day should I count as the first day of my menstrual cycle? Thank you.

Judy, 20~29 year old female. Ask Date: 2021/06/12

Dr. Wu Xianghui reply Obstetrics and Gynecology


Due to the unknown condition of the endometrium before medication and the lack of clarity regarding the purpose of the blood test, it is not possible to assess or provide recommendations.

Reply Date: 2021/06/12

More Info


When it comes to menstrual regulation medications, it's essential to understand how they work and what to expect during treatment. In your case, you were prescribed a regimen that includes Yisder (益斯德) for four days followed by Puvira (普維拉) for seven days. It’s common for these medications to cause changes in your menstrual cycle, including breakthrough bleeding or spotting, which seems to be what you are experiencing.

To address your specific questions:
1. Should you continue taking Puvira? Since you are experiencing bleeding that resembles your menstrual flow, it is generally advisable to continue taking the medication as prescribed unless your healthcare provider has instructed otherwise. Stopping the medication prematurely could potentially disrupt the intended effects of the treatment. However, if you have concerns about the bleeding or any other side effects, it’s best to consult your doctor for personalized advice.

2. Determining the first day of your menstrual cycle: The first day of your menstrual cycle is typically defined as the first day of full menstrual bleeding, not just spotting. In your case, if the bleeding you are experiencing is similar to your usual menstrual flow, you would count that as day one. If the bleeding is light and not typical of your regular menstrual period, you might want to wait until the flow becomes heavier before counting it as the first day of your cycle.
It's also important to note that hormonal medications can cause variations in bleeding patterns, and it may take a few cycles for your body to adjust. If you find that the bleeding is excessively heavy or accompanied by severe pain, you should seek medical attention promptly.


Additional Considerations:
- Monitoring Your Symptoms: Keep track of your bleeding patterns, including the flow and any associated symptoms (like pain or discomfort). This information can be valuable for your healthcare provider in assessing your response to the medication and making any necessary adjustments.

- Follow-Up Appointments: Since you mentioned planning to have blood tests on the third day of your period, ensure that you communicate with your healthcare provider about your current bleeding situation. They may want to adjust the timing of your tests based on your menstrual cycle.

- Potential Side Effects: Be aware that medications like Yisder and Puvira can have side effects, including nausea, headaches, or mood changes. If you experience any concerning symptoms, reach out to your healthcare provider.

- Lifestyle Factors: Maintaining a healthy lifestyle, including a balanced diet and regular exercise, can also support your menstrual health. Stress management techniques, such as yoga or meditation, may help regulate your cycle as well.

In conclusion, continue taking your medication as prescribed unless advised otherwise by your healthcare provider, and count the first day of your menstrual cycle based on the nature of your bleeding. If you have any further questions or concerns, don’t hesitate to reach out to your doctor for guidance. Your health and comfort are paramount, and your healthcare provider is there to support you through this process.

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