Ghislaine Morin
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Chinese medicine is not automatically incompatible with chemotherapy, but some herbs genuinely interfere. What to disclose, what to avoid, and how to time it.

Where this idea comes from

The warning is a reasonable default that hardened into an absolute rule. Oncology teams see patients arrive with unlabelled powders, so they say stop everything herbal. Patients hear that the two systems cannot coexist. Both sides are protecting the same thing, and neither is describing the full picture. What separates them is usually the difference between a precaution and a prohibition.
There is a real basis underneath. Some herbs induce the liver enzymes that clear chemotherapy, lowering drug levels. Others inhibit them, raising toxicity. St John's wort is the classic example, and grapefruit juice makes the same point in a different aisle of the same problem. Timing matters as much as the substance: an herb taken on the day of infusion sits in the body at the same moment as the drug.

What Chinese medicine actually says

In Chinese hospitals, herbal formulas are routinely given during chemotherapy, and the classical indications are specific: nausea, vomiting, fatigue, poor appetite, low blood counts. The formula is chosen for the pattern the treatment has produced, not for the cancer itself. Nothing here suggests that herbs are harmless; it suggests that they are prescribed for a reason and stopped when the reason ends.
The tradition also has its own rules about timing and about not overloading a depleted body. Classical authors treat the digestive system as the gate through which any formula must pass. If the gate is closed by nausea, the priority is opening it, not adding more substances.

What the research says

The strongest evidence concerns nausea. Ezzo's 2006 Cochrane review of acupoint stimulation for chemotherapy-induced nausea found a reduction in acute vomiting, on low-quality evidence, with no clear effect on delayed nausea. That is a modest, specific result rather than a general endorsement.
For herbs the evidence is much thinner, and the safety literature is more instructive than the efficacy literature. The NCCIH notes that Chinese herbal products have been associated with liver and kidney injury and with contamination, and the IARC classifies aristolochic acid as a Group 1 carcinogen. Those are reasons for supervision, not for blanket prohibition. Liver injury from herbal products is uncommon but well documented, and it is often traced to misidentification rather than to the plant itself.

What you can realistically expect

At the Centre Équilibre in Grenoble, Ghislaine Morin asks for the oncology protocol before any prescription, and works with the treating team rather than around it. Sessions during chemotherapy are shorter, gentler and often limited to acupressure or needling away from compromised skin. She will also ask what the hospital has already prescribed for nausea, because duplication is the commonest mistake.
The TCM dispensary she runs at the centre keeps batch records and refuses formulas that duplicate what the hospital is already doing. Realistically, expect help with nausea, fatigue and sleep, and expect the answer no when an interaction is plausible. That refusal is part of the treatment, not a failure of it.

When to consult, and when not to

Consult if your oncology team agrees, if your blood counts allow it, and if you can name every product you are taking. The best moment is before a cycle starts, so timing can be planned rather than improvised between infusions.
Do not start herbs secretly, do not take a formula prescribed for someone else, and do not continue anything that coincides with a rise in liver enzymes or a drop in kidney function. Do not use TCM to manage a fever during chemotherapy. Neutropenic fever is an emergency, and it belongs in hospital. Those are not reasons to be frightened; they are reasons to have one person coordinating.

Frequently asked questions

Can I have acupuncture during chemotherapy?

Usually yes, with adjustments. Many oncology centres offer it for nausea and fatigue. Sessions are shorter, needles are placed away from lymphoedematous limbs and from skin altered by radiotherapy, and extra care is taken about bleeding risk when platelets are low.

Do Chinese herbs interact with chemotherapy drugs?

Some do. Herbs can induce or inhibit the liver enzymes that clear cytotoxic drugs, which changes how much of the drug stays in your body. Others add strain on kidneys already working hard. The risk depends on the specific herb and drug, which is why disclosure matters.

Should I stop Chinese medicine before starting chemotherapy?

Discuss it rather than deciding alone. Stopping abruptly is sometimes right, especially with supplements that affect clotting. Continuing under supervision is sometimes right too. Your oncology team needs the full list, including teas, capsules and powders bought online without a prescription.

Useful links

Sources

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Ghislaine Morin
Ghislaine Morin
Praticienne en médecine traditionnelle chinoise et sophrologue à Grenoble
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