Can You Take Natto and Red Yeast Rice with Your Current Medications? - Pharmacology

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Medication Consultation


Currently, you are taking the following medications: Fluitran (Trichlormethiazide) 2 mg, Olmetec FC (Olmesartan Medoxomil) 20 mg, Nacid (Hydrotalcite) 500 mg, Norvasc (Amlodipine Besylate) 5 mg, and Plavix (Clopidogrel) 75 mg once daily, as well as Trenrylline SR FC (Pentoxifylline) 400 mg and Glibudon (Metformin HCl) 500 mg twice daily.

Regarding the consumption of natto and red yeast rice while on these medications, it is important to note that red yeast rice contains monacolin K, which is similar to the active ingredient in statins and may have additive effects on cholesterol-lowering.
This could potentially enhance the effects of any cholesterol-lowering medications you may be taking, leading to an increased risk of side effects such as muscle pain or liver damage.
Additionally, natto contains vitamin K, which can affect blood clotting and may interact with anticoagulants like Plavix (Clopidogrel).

It is crucial to consult with your healthcare provider or a pharmacist before adding natto or red yeast rice to your regimen to ensure there are no significant interactions or contraindications based on your specific health conditions and medications.

john, 50~59 year old female. Ask Date: 2013/11/08

Dr. Huang Shenggang reply Pharmacology


Hello, regarding the use of natto and red yeast rice, there are several important considerations: 1.
Women who are pregnant or planning to become pregnant.
2.
Individuals with abnormal liver function tests.
3.
Those with liver damage due to chronic alcohol abuse.
If you are taking antifungal medications (such as Triazole) or immunosuppressants (such as Cyclosporine), it is essential to consult a physician, as these medications should not be used concurrently with natto and red yeast rice.
Additionally, it is important to note whether you take natto and red yeast rice before or after starting these medications, as this can also have implications.

Reply Date: 2013/11/08

More Info


When considering the use of Natto and Red Yeast Rice (RYR) alongside your current medications, it is essential to understand the potential interactions and effects these supplements may have on your health. You are currently taking a combination of medications, including Fluitran (Trichlormethiazide), Olmetec FC (Olmesartan Medoxomil), Nacid (Hydrotalcite), Norvasc (Amlodipine Besylate), Plavix (Clopidogrel), Trenrylline SR FC (Pentoxifylline), and Glibudon (Metformin HCl).
Natto and Red Yeast Rice Overview:
Natto is a fermented soybean product rich in vitamin K2 and probiotics, while Red Yeast Rice is a traditional Chinese medicine that contains monacolin K, which is chemically identical to the active ingredient in the cholesterol-lowering drug lovastatin. Both supplements are often used for their cardiovascular benefits, particularly in lowering cholesterol levels.

Potential Interactions:
1. Cholesterol-Lowering Effects: Since Red Yeast Rice contains monacolin K, it has the potential to lower cholesterol levels. If you are already on medications like Olmesartan (which is primarily for hypertension) and Amlodipine (a calcium channel blocker), the addition of RYR could lead to an additive effect on cholesterol reduction. However, this could also increase the risk of side effects associated with statins, such as muscle pain or liver enzyme elevation.

2. Blood Thinning Effects: Plavix (Clopidogrel) is an antiplatelet medication that helps prevent blood clots. While there is no direct interaction between RYR and Plavix, any supplement that affects blood clotting should be approached with caution. Natto, in particular, is known for its vitamin K content, which can counteract the effects of anticoagulants. However, the amount of vitamin K in Natto is generally not high enough to cause significant issues unless consumed in large quantities.

3. Blood Pressure and Diuretics: Fluitran (Trichlormethiazide) is a diuretic that can affect electrolyte balance. While there is no direct interaction with Natto or RYR, it is essential to monitor your blood pressure and electrolyte levels regularly, especially if you are adding new supplements to your regimen.

4. Diabetes Management: Glibudon (Metformin) is used to manage blood sugar levels. There is limited evidence on the direct effects of Natto and RYR on blood glucose levels, but any dietary changes should be monitored closely to ensure they do not adversely affect your diabetes management.

Recommendations:
- Consult Your Healthcare Provider: Before adding Natto or Red Yeast Rice to your diet, it is crucial to discuss this with your healthcare provider or a pharmacist. They can provide personalized advice based on your complete medical history and current medication regimen.


- Monitor for Side Effects: If you decide to take these supplements, be vigilant for any unusual symptoms, such as muscle pain, fatigue, or changes in liver function, and report these to your healthcare provider immediately.

- Consider Timing: If you are concerned about interactions, consider taking these supplements at different times from your medications. For example, taking RYR in the evening and your medications in the morning may help mitigate potential interactions.

In conclusion, while there may not be direct contraindications for taking Natto and Red Yeast Rice with your current medications, the potential for interactions exists, particularly concerning cholesterol management and blood thinning. Always prioritize open communication with your healthcare team to ensure safe and effective management of your health conditions.

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