What to Do If You Accidentally Take Menstrual Medication? - Obstetrics and Gynecology

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What to do if you accidentally take a medication for menstrual regulation?


Hello doctor, my menstrual cycle has been irregular.
I started having light bleeding at the beginning of June, and after seeing a doctor on June 20, I was prescribed a medication to delay my period, taking one pill daily until I stopped on July 5.
My period started on July 9 and ended on the 16th.
However, on the 28th, I accidentally took half a tablet of Limethasone, and my period returned on August 2 with a normal flow.
Usually, I experience dysmenorrhea, but this time I did not.
Could this bleeding be due to the half tablet I took, or is it really my period? Should I wait for it to stop, or should I see a doctor for hemostasis? I found online that each tablet contains: Northindrone Acetate 10mg and Ethinyl Estradiol 20μg.

Yan Yan, 20~29 year old female. Ask Date: 2017/08/04

Dr. Huang Jianzhong reply Obstetrics and Gynecology


I have been experiencing irregular menstruation.
I started having light bleeding in early June, and after seeing a doctor on June 20, I was prescribed a medication to delay my period, taking one pill daily until I stopped on July 5.
My period started on July 9 and ended on July 16.
However, on June 28, I accidentally took half a tablet of Limicet (which contains 10 mg of Northindrone Acetate and 20 μg of Ethinyl Estradiol).
As a result, my period came again on August 2 with a normal flow.
Normally, I experience dysmenorrhea, but this time I did not.
I would like to know if the bleeding was caused by that half tablet or if it was indeed my menstrual period.
Should I wait for it to stop, or should I see a doctor for hemostasis?
Answer: After seeing the doctor on June 20, I took the medication to delay my period until July 5.
My period started on July 9 and ended on July 16.
The bleeding on August 2 was not due to that half tablet; it was indeed my actual menstrual period.

Reply Date: 2017/08/04

More Info


If you accidentally take menstrual medication, such as a half tablet of a medication like Lymecycline (which contains Northindrone Acetate and Ethinyl Estradiol), it’s important to understand the potential effects and what steps you should take next.
First, let’s clarify what these medications do. Northindrone is a progestin, a synthetic form of the hormone progesterone, while Ethinyl Estradiol is a form of estrogen. These hormones are commonly used in contraceptives and treatments for menstrual irregularities. They work by regulating the menstrual cycle, preventing ovulation, and stabilizing the uterine lining.
In your case, since you took a half tablet of this medication after experiencing irregular bleeding, it’s possible that the hormones in the medication could influence your menstrual cycle. The fact that you experienced a normal menstrual flow shortly after taking the medication could be attributed to the hormonal effects of the drug. It’s also worth noting that hormonal medications can sometimes alleviate menstrual pain, which you experienced this time around.

Now, regarding your concerns about whether this bleeding is a result of the medication or if it is indeed your menstrual period, it can be a bit tricky. Hormonal medications can cause breakthrough bleeding, which is light bleeding or spotting that can occur between periods or during the use of hormonal contraceptives. Since you mentioned that you typically experience dysmenorrhea (painful menstruation) but did not have pain this time, it could be due to the hormonal influence of the medication.

Here are some steps you can take:
1. Monitor Your Symptoms: Keep track of your bleeding, including the amount and duration. If it resembles your typical menstrual flow, it’s likely your period. If it’s lighter or shorter than usual, it could be breakthrough bleeding.

2. Wait and See: If the bleeding is not heavy and you are not experiencing any severe discomfort, it may be reasonable to wait a few days to see if your symptoms stabilize.
3. Consult Your Doctor: If the bleeding continues for an extended period, becomes heavier, or if you experience any unusual symptoms (such as severe pain, dizziness, or fainting), it’s important to contact your healthcare provider. They can provide guidance on whether you need to stop the medication or if any additional treatment is necessary.

4. Avoid Further Doses: Since you accidentally took the medication, avoid taking any more until you have consulted with your doctor. They can provide specific advice based on your medical history and current situation.

5. Discuss Future Medication Use: If you find that your menstrual cycle continues to be irregular or if you have concerns about the medications you are taking, discuss these with your healthcare provider. They may suggest alternative treatments or adjustments to your current regimen.

In summary, while it’s possible that the half tablet you took could have influenced your menstrual cycle, it’s essential to monitor your symptoms and consult with your healthcare provider for personalized advice. Hormonal medications can have various effects on the body, and your doctor will be able to provide the best guidance based on your individual health needs.

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