Menstrual Cycle Management: Medication and Concerns - Obstetrics and Gynecology

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Medication consultation


On July 25, I consulted a doctor to get medication to delay my menstrual period, which was expected to start on August 3, as I planned to go out on August 5.
The doctor prescribed Shiton S.C.
tablets to be taken on the first day of menstruation, one in the morning and one in the evening.
The flow on the first day was lighter than usual, and after taking the third tablet on the second day, I decided to stop the medication because I noticed there was no menstrual flow.
The next day, on the third day, the flow was still light, but I had also taken Ai-Ji, a menstrual regulation medication (which the doctor advised me to take on the third day before bed, and I have been taking it for a year).
On the fourth day, the flow was similar to what I usually experience when taking Ai-Ji.

Is this considered normal? Does stopping the medication on my own while taking Ai-Ji affect my menstrual cycle? Was it correct for me to stop the medication and continue taking the menstrual regulation medication?

Lin, 20~29 year old female. Ask Date: 2023/08/07

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, that should be considered normal; just monitor it.
Wishing you good health.

Reply Date: 2023/08/07

More Info


Managing the menstrual cycle can be a complex issue, especially when it involves medication to delay or alter the timing of menstruation. In your case, it seems you were prescribed Shiton S.C. tablets to postpone your period, which is a common practice for those who wish to avoid menstruation during specific events or vacations. The medication is typically taken starting on the first day of your menstrual cycle, as directed by your physician.

From your description, it appears that you experienced a lighter than usual flow initially, which is not uncommon when starting hormonal medications. The body can take time to adjust to changes in hormone levels, and this can lead to variations in menstrual flow. The fact that you noticed a decrease in blood flow after taking the medication and then a return to a more normal flow after stopping the medication and continuing with your regular cycle management medication (Ai Ji) suggests that your body is responding to the hormonal changes.
It’s important to note that stopping a medication like Shiton S.C. after only a couple of doses may not have a significant impact on your menstrual cycle, especially since you continued taking Ai Ji, which is designed to regulate your cycle. However, it’s always best to follow your doctor’s advice regarding medication use. If you have concerns about how these medications interact or affect your menstrual cycle, it’s advisable to consult with your healthcare provider for personalized guidance.

In terms of the normalcy of your experience, menstrual cycles can vary widely among individuals, and even for the same individual from month to month. Factors such as stress, changes in routine, and hormonal medications can all influence menstrual flow. The key indicators of a normal cycle include the regularity of the cycle, the amount of flow, and the duration of menstruation. If your cycle remains within the range of what is typical for you, then it is likely considered normal.

Regarding the combination of medications, it’s crucial to be aware of potential interactions. While Shiton S.C. and Ai Ji may not have direct contraindications, the hormonal effects of both medications could potentially lead to unexpected changes in your cycle. If you experience any unusual symptoms, such as severe cramping, prolonged bleeding, or any other concerning signs, it’s essential to seek medical advice promptly.

In summary, your experience of lighter menstrual flow after starting and then stopping Shiton S.C. while continuing Ai Ji is not unusual, and it seems you are managing your medications appropriately. However, for any ongoing concerns or if you notice significant changes in your cycle, it’s best to consult with your healthcare provider to ensure that your menstrual health is being properly managed. They can provide you with the most accurate information based on your medical history and current health status.

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