the Interaction Between Emergency Contraceptives and Pain Relievers - Obstetrics and Gynecology

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Issues and Medication Regarding Emergency Contraceptive Pills


Hello, doctor.
I have been taking the emergency contraceptive pill (Esmeron) for over six months.
Recently, I have been experiencing tooth pain and have been taking "Pain Relief Tablet 50 mg," which contains FLURBIPROFEN.
I would like to ask the following questions:
1.
After taking it, my basal body temperature rose to 36.8°C (my usual basal body temperature is between 36.4°C and 36.57°C).
Could this be influenced by taking the Pain Relief Tablet?
2.
Is it also possible that gum inflammation is causing the increase in basal body temperature?
3.
Will this anti-inflammatory pain medication interact with the emergency contraceptive pill, and should I avoid taking it?
4.
If it is safe to take, what would be the appropriate interval between doses? Thank you, doctor!

Lin, 20~29 year old female. Ask Date: 2023/04/08

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, it generally does not affect the effectiveness of oral contraceptives, and they can be taken together.
Wishing you good health.

Reply Date: 2023/04/08

More Info


When considering the interaction between emergency contraceptives and pain relievers, particularly in your case with the use of "捕痛錠" (Flurbiprofen), there are several important factors to discuss.

1. Effect on Basal Body Temperature: The increase in your basal body temperature to 36.8°C after taking Flurbiprofen could be attributed to several factors. Nonsteroidal anti-inflammatory drugs (NSAIDs) like Flurbiprofen can sometimes cause a slight increase in body temperature as they work to reduce inflammation and pain. However, it is also possible that the underlying condition, such as gum inflammation or infection, could be contributing to this rise in temperature. Infections often trigger an immune response, which can elevate body temperature. Therefore, while Flurbiprofen may have a minor effect, the primary cause of the temperature increase could be related to the dental issue.

2. Potential for Inflammation: If you are experiencing gum inflammation, this could indeed lead to an increase in your basal body temperature. Inflammation is part of the body's immune response to infection or injury, and it can cause localized swelling, redness, and warmth, as well as systemic symptoms like fever. If you suspect that your gums are inflamed, it may be beneficial to consult a dentist for further evaluation and treatment.

3. Drug Interactions: Regarding the interaction between Flurbiprofen and your emergency contraceptive (愛斯麗安), there is generally no significant interaction reported between NSAIDs and hormonal contraceptives. Flurbiprofen is primarily used for pain relief and inflammation, and it does not typically affect the efficacy of hormonal contraceptives. However, it is always prudent to consult with a healthcare provider or pharmacist regarding any potential interactions, especially if you are taking multiple medications.

4. Timing of Medication: If you decide to take both medications, it is advisable to space them out to minimize any potential gastrointestinal side effects, which are common with NSAIDs. A general recommendation would be to take Flurbiprofen at least 2 hours apart from your contraceptive pill. This timing helps ensure that the absorption and effectiveness of both medications are not compromised.

In summary, while Flurbiprofen is unlikely to interfere with the effectiveness of your emergency contraceptive, it is essential to monitor your symptoms and consult with a healthcare professional if you have concerns about your dental health or the medications you are taking. Additionally, if the inflammation or pain persists, seeking dental care would be a wise step to address the underlying issue. Always prioritize open communication with your healthcare providers regarding any medications you are taking to ensure safe and effective treatment.

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