Do Era Pills Interfere with the Effectiveness of Birth Control? - Pharmacology

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The conflicting effects of contraceptive pills?


Hello, I have been taking the contraceptive pill "Yasmin" for over a year.
I would like to ask if taking "Era" (a medication) will interfere with the contraceptive effectiveness of Yasmin? Will it affect the contraceptive effect?

wwblabla, 20~29 year old female. Ask Date: 2015/11/27

Dr. Liao Huiling reply Pharmacology


After investigation, it has been found that Era (Eshoo) tablets do not have any interactions with the Xianling Yejiji contraceptive pills and will not affect the efficacy of the contraceptive pills.

Reply Date: 2015/11/27

More Info


When considering the interaction between Era pills (often referred to as "易舒錠") and birth control pills like the ones you mentioned (先靈悅己), it is essential to understand how these medications work and their potential interactions. Based on the information provided, there is no evidence to suggest that Era pills interfere with the effectiveness of birth control pills.

Birth control pills, particularly those containing hormones like estrogen and progestin, work primarily by preventing ovulation, thickening cervical mucus, and thinning the uterine lining to prevent pregnancy. The effectiveness of these pills can be influenced by various factors, including other medications, but not all medications have a significant impact.

Era pills, which are often used for various conditions such as allergies or respiratory issues, typically contain ingredients that do not interact with the hormonal mechanisms of birth control pills. According to drug interaction databases and clinical guidelines, there is no documented interaction between Era pills and hormonal contraceptives like the ones you are taking. This means that taking Era pills should not reduce the effectiveness of your birth control.

However, it is important to note that while most medications do not interfere with hormonal contraceptives, certain antibiotics and medications that induce liver enzymes can potentially decrease the effectiveness of birth control pills. This is not the case with Era pills, as they do not fall into these categories.

In addition to medication interactions, other factors can affect the effectiveness of birth control pills, such as missed doses, gastrointestinal issues (like vomiting or diarrhea), and certain health conditions. It is crucial to take your birth control pill consistently at the same time each day to maintain its effectiveness.

If you have any concerns about the medications you are taking or their interactions, it is always best to consult with your healthcare provider. They can provide personalized advice based on your medical history and current medications.
In summary, based on the available information, Era pills do not interfere with the effectiveness of your birth control pills. You can continue taking both medications without worrying about a reduction in contraceptive efficacy. Always ensure to follow your healthcare provider's recommendations and maintain open communication regarding any new medications or changes in your health status.

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