Impact of Supplements on Birth Control Pills: What You Need to Know - Obstetrics and Gynecology

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Hello Doctor, I am 23 years old and currently experiencing autonomic nervous system dysregulation.
I have obtained Vitex (Chaste Tree) and DHEA (Dehydroepiandrosterone) from the pharmacy.
I have not started taking either of them yet because I am currently on a birth control pill, Meizitang, and I am on the 9th pill today.
I would like to know if the medications from the pharmacy will affect the effectiveness of my birth control pills.
Should I finish the birth control pills first or stop them and start taking the supplements? If I suddenly stop taking the birth control pills, will it cause significant disruption to my menstrual cycle? Thank you, Doctor!

Chen, 20~29 year old female. Ask Date: 2022/05/28

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, it generally does not have an impact.
Do not stop taking the birth control pills, otherwise your period may come early.
Wishing you good health.

Reply Date: 2022/05/28

More Info


When considering the impact of supplements on birth control pills, it's essential to understand how various substances can interact with hormonal contraceptives. In your case, you are taking Vitex (Chaste Tree) and DHEA (Dehydroepiandrosterone) alongside your birth control pills.
First, let's address the potential interactions. Vitex is often used for various menstrual and hormonal issues, but its effects on birth control pills are not entirely clear. Some studies suggest that Vitex may influence the levels of certain hormones, potentially altering the effectiveness of hormonal contraceptives. However, the evidence is not definitive, and many healthcare providers remain cautious about recommending its use alongside birth control pills.
DHEA is a hormone that can be converted into both estrogen and testosterone in the body. The use of DHEA while on birth control pills could theoretically affect hormone levels, but again, the clinical significance of this interaction is not well established. The primary concern with DHEA is that it may lead to hormonal imbalances, which could affect your menstrual cycle and overall hormonal health.

Regarding your specific questions:
1. Will these supplements affect the effectiveness of your birth control pills? While there is no strong evidence to suggest that Vitex or DHEA will significantly reduce the effectiveness of birth control pills, the potential for hormonal interactions exists. It is advisable to consult with your healthcare provider before starting these supplements to ensure they are safe and appropriate for your situation.

2. Should you finish your birth control pills before starting the supplements? It is generally recommended to complete your current course of birth control pills before introducing any new supplements. This approach helps maintain hormonal stability and reduces the risk of menstrual irregularities that can occur with sudden changes in hormone levels.

3. What happens if you suddenly stop taking birth control pills? Stopping birth control pills abruptly can lead to hormonal fluctuations, which may result in irregular menstrual cycles, increased menstrual cramping, or other symptoms associated with the return of natural ovulation. If you have been on the pill for an extended period, your body may take some time to adjust back to its natural hormonal rhythm. It is common for cycles to be irregular for a few months after discontinuation.

In summary, while the use of Vitex and DHEA may not directly negate the effectiveness of your birth control pills, there are potential hormonal interactions that could affect your menstrual cycle and overall hormonal balance. It is crucial to discuss these supplements with your healthcare provider, who can provide personalized advice based on your health history and current medications. They may suggest monitoring your cycle closely if you decide to start these supplements or recommend alternative approaches to managing your symptoms related to autonomic nervous system dysregulation. Always prioritize open communication with your healthcare provider to ensure safe and effective management of your health.

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