Do Herbal Remedies Interact with Birth Control Pills? - Traditional Chinese Medicine

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Is there a conflict between traditional Chinese medicine and contraceptive pills?


Hello, doctor.
I am taking herbal medicine for weight loss and would like to know if it will have any effects when taken together with oral contraceptives.
The herbal ingredients include: Gynostemma pentaphyllum, Cassia seeds, Lotus leaves, Green tea, Grapefruit essential oil, Ganoderma lucidum, Bitter melon, Codonopsis pilosula, Qingteng, He Shou Wu, and Turmeric extract.
The effects are: - Dissolving fat and aiding weight loss, especially in the abdomen, thighs, and arms.
- Detoxifying the liver, lowering blood lipids, purifying the intestines, and cleansing the blood to prevent diseases.
- Promoting rapid muscle growth, enhancing skin hydration, aiding menstrual regulation, nourishing the blood, and benefiting the mammary glands.
- Helping to limit calorie intake and suppress appetite.

Niming, 10~19 year old female. Ask Date: 2019/04/07

Dr. Yan Sumei reply Traditional Chinese Medicine


Dear anonymous user: There are currently no research reports on potential interactions between weight loss medications and contraceptives, and this remains an unknown area.
To avoid possible side effects, it is recommended to take them at least one hour apart.
Wishing you health and safety! Sincerely, Su-Mei Yen, Department of Traditional Chinese Medicine, Nantou Hospital.

Reply Date: 2019/04/07

More Info


When considering the interaction between herbal remedies and birth control pills, it's essential to understand that certain herbal ingredients can indeed affect the efficacy of hormonal contraceptives. The concern primarily revolves around how these herbs may influence liver enzymes responsible for metabolizing medications, including birth control pills.

Many herbal supplements, particularly those that are commonly used for weight loss, detoxification, or general health, can have varying effects on the liver. For instance, herbs like St. John's Wort are well-known for their ability to induce liver enzymes, which can lead to a decreased effectiveness of hormonal contraceptives. While the specific herbs you've mentioned—such as Guo Gu Lan (絞股藍), Jue Ming Zi (決明子), and others—are not as widely studied in this context, caution is warranted.

1. Guo Gu Lan (絞股藍): This herb is often used for its purported health benefits, including anti-inflammatory and antioxidant properties. However, its interaction with medications is not well-documented, so its effect on birth control pills remains uncertain.

2. Jue Ming Zi (決明子): Known for its use in traditional Chinese medicine, this herb is primarily used for its laxative effects and to promote eye health. There is limited research on its interaction with hormonal medications.

3. Lotus Leaves (蓮葉): Often used in weight loss formulations, lotus leaves may have mild diuretic effects, but their interaction with birth control pills is not well established.

4. Green Tea (綠茶): While green tea is rich in antioxidants, high doses of green tea extract can affect liver enzymes, potentially impacting the metabolism of various medications.

5. Grapefruit Oil (柚子精油): Grapefruit is known to interact with many medications, including birth control pills, by inhibiting the same liver enzymes that metabolize these drugs, potentially leading to increased levels of the hormones in the bloodstream and a higher risk of side effects.

6. Lingzhi (黃靈芝): This mushroom is often used for its immune-boosting properties. Its interaction with medications is not well-documented, but it is generally considered safe.

7. Bitter Melon (苦瓜): While it has been studied for its effects on blood sugar, its interaction with hormonal contraceptives is not clearly defined.

8. Ren Shen (土人參): This herb is used for its energy-boosting properties, but its effects on drug metabolism are not well understood.

9. Qing Teng Zi (青藤仔): The effects of this herb on hormonal medications are not well-studied.

10. He Shou Wu (何首烏): Known for its potential benefits in hair and skin health, its interaction with birth control pills is not well-documented.

11. Turmeric (薑黃精): Turmeric is known for its anti-inflammatory properties, but high doses may affect liver function and, consequently, the metabolism of medications.

Given the complexity of herbal interactions, it is crucial to consult with a healthcare provider before combining herbal remedies with birth control pills. A healthcare professional can provide personalized advice based on your specific health needs and the herbs you are considering.
In summary, while some herbal remedies may not have a direct interaction with birth control pills, others, particularly those that affect liver enzymes, could potentially alter the effectiveness of hormonal contraceptives. It is always best to err on the side of caution and seek professional guidance when integrating herbal supplements into your regimen, especially when you are also using prescription medications.

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