Managing Emergency Contraceptive Pill Absorption Issues - Obstetrics and Gynecology

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Issues with the absorption of emergency contraceptive pills?


Hello Doctor, on April 9th, I took the fourth pill of my emergency contraceptive at 11 PM.
After taking the pill, I experienced vomiting and diarrhea at 1 AM and immediately took another pill.
Then, at 5 AM, I vomited and had diarrhea again.
I took another pill at 9 AM, which means I have taken a total of three pills.
I would like to ask if I should continue taking the next pill as scheduled? Will taking too many pills cause any adverse effects? Also, since I missed two pills, should I stop taking the medication two days early, or do I need to buy another pack to take those two missing pills?

Dan Bao, 20~29 year old female. Ask Date: 2022/04/11

Dr. Zhang Kunmin reply Obstetrics and Gynecology


Hello, based on your description, I recommend continuing to take the medication daily.
You can finish this cycle earlier if needed.
Thank you! Wishing you peace and health.
Dr.
Chang

Reply Date: 2022/04/11

More Info


When managing issues related to the absorption of emergency contraceptive pills (ECPs), it is crucial to understand how these medications work and the implications of vomiting or diarrhea shortly after taking them. ECPs, such as those containing levonorgestrel or ulipristal acetate, are designed to prevent pregnancy after unprotected intercourse or contraceptive failure. Their effectiveness can be compromised if they are not absorbed properly due to gastrointestinal disturbances.

In your case, you took the ECP and then experienced vomiting and diarrhea within a few hours. Generally, if vomiting occurs within two hours of taking the pill, it is recommended to take another dose, as the medication may not have been absorbed into your system. Since you vomited again and had diarrhea, it is understandable that you are concerned about whether the medication is still effective and how to proceed.

Given that you took a total of three pills in a short period, it is important to consider the following points:
1. Dosage and Timing: ECPs are typically taken as a single dose or in a two-dose regimen, depending on the specific medication. Taking multiple doses in a short time frame can lead to increased side effects, such as nausea, fatigue, and changes in your menstrual cycle. However, it is unlikely to cause serious harm if you have taken them as a response to potential ineffectiveness due to vomiting.

2. Next Steps: You should continue with your regular dosing schedule after the emergency situation has been addressed. If you are on a regimen that requires you to take a pill daily, you can resume taking your next pill as scheduled. However, if you are unsure about your current regimen or if you have missed doses, it may be prudent to consult with a healthcare provider for personalized advice.

3. Monitoring for Side Effects: After taking multiple doses of ECPs, be vigilant for any side effects. Common side effects include nausea, fatigue, headaches, and changes in your menstrual cycle. If you experience severe side effects or if your menstrual cycle is significantly delayed, it is advisable to seek medical attention.

4. Follow-Up: If you are concerned about the effectiveness of the ECPs due to the vomiting and diarrhea, consider taking a pregnancy test if your next period is delayed by more than a week. Additionally, if you find yourself needing ECPs frequently, it may be worth discussing long-term contraceptive options with your healthcare provider.

5. Consulting a Healthcare Provider: Since you are experiencing gastrointestinal issues, it may be beneficial to consult a healthcare provider. They can provide guidance on whether you need to take additional doses or if you should switch to a different contraceptive method. They can also help you manage any side effects you may be experiencing.

In summary, while it is understandable to be concerned about the absorption of ECPs after experiencing vomiting and diarrhea, taking additional doses in response to these symptoms is a common practice. However, it is essential to follow up with a healthcare provider to ensure that you are on the right track and to discuss any ongoing concerns about your contraceptive method.

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