Medical Oncologist
CION Cancer Clinics
Hidden alcohol and heavy metals in some traditional medicines | CION Cancer Clinics
Some traditional medicines contain heavy metals such as lead, mercury or arsenic, and some liquid tonics contain alcohol from fermentation. Neither is usually on the label, and both matter most to a liver that has cirrhosis or cancer. This page explains what may be hidden, which warning signs need hospital today, and how to tell your oncologist what you take without feeling judged. At CION Cancer Clinics, our specialists help you understand your own risk and plan regular liver checks that fit it.
NG
Medically reviewed by Dr. Naresh GunduConsultant Medical Oncologist · MBBS, DNB (Internal Medicine), DM (Medical Oncology, AIIMS) · last reviewed October 2026, next review due October 2027
17+specialists on panel
15,000+patients treated
35+centres across Telangana & AP
4.8★ / 800+Google rating
On this page
- Can a traditional medicine contain alcohol or heavy metals?
- What hidden ingredients should families know about?
- How do I tell the oncologist what we have been taking?
- Four things families tell us, and what is actually true
- What this page cannot tell you
- Common questions about traditional medicines and the liver
The short answer
Can a traditional medicine contain alcohol or heavy metals?
Yes, some can. Studies have found lead, mercury or arsenic in a share of traditional preparations tested, and some liquid tonics are made by fermentation and contain alcohol. Neither is usually written on the label, and both matter most to a liver that is already scarred or has cancer.
This is not about whether tradition is good or bad
Many families use traditional medicine with real trust, and often alongside hospital treatment. This page does not ask you to give that up. It explains two hidden problems that a doctor cannot see unless you tell them, so the person you are caring for is not harmed by something meant to help.
Why the liver takes the strain
Almost everything swallowed passes through the liver first. A healthy liver can often cope with small amounts of a harmful substance. A liver with cirrhosis, or one being treated for cancer, has much less room to spare. Why the liver is the organ most harmed by herbal remedies explains this in more detail.
A product being natural or traditional says nothing about what is inside a particular bottle.Not sure whether this applies to you?
Ask an oncologist
!
Signs that cannot wait
If someone with liver disease or liver cancer becomes newly confused or very drowsy, vomits blood, passes black stools, or turns yellow with a fever, go to hospital today. Do not wait to see if a tonic or remedy settles it. Take every bottle and packet they have been using with you, so the doctors can see exactly what was taken.
Without being judged
How do I tell the oncologist what we have been taking?
Collect everything in one bag
Put every bottle, packet, powder and tablet in one bag, including things given by relatives or bought on a pilgrimage. Labels help even if they are in another language.
Write down how much and how long
Note roughly how often each one is taken and when it was started. A phone photo of each label is enough if the bottle is nearly empty.
Say it early in the visit
Something as simple as "We have also been giving these, and I want to know if they are safe with his treatment" opens the conversation. The team needs the facts, not an apology.
Ask about blood tests
Your doctor may check liver tests again, and sometimes metal levels in the blood, if a product is a concern. Changes in liver tests during treatment are much easier to explain when the team knows the whole list.
Decide together what to pause
Often the advice is to pause products during active treatment. The decision is made with you. How to tell your oncologist without being judged has more help.
Leave a number, we will call you
One field. No form to fill in, and no charge for the call.
Commonly believed
Four things families tell us, and what is actually true
"It is made from plants, so it cannot hurt the liver."
The liver handles plant chemicals the same way it handles medicines. Some plants, and some contaminants picked up during making, can injure it. Natural describes where something came from, not whether it is safe.
"The metals are purified, so they are harmless."
Traditional processing is meant to make metals safer, and practitioners take it seriously. Testing has still found metal levels in some finished products that are a concern, especially for someone whose liver or kidneys cannot clear them well.
"A spoon of tonic is medicine, not alcohol."
If it was made by fermentation, it can be both. Ask the oncologist before giving it to someone with cirrhosis or alcohol-related liver disease.
"If we tell the doctor, they will refuse to treat us."
Doctors ask because they need to know what the liver is dealing with. Telling them protects the patient and changes nothing about whether they are treated.
Being straight with you
What this page cannot tell you
It cannot tell you whether a particular product in your home is safe or unsafe. Labels do not always list what is inside, and testing one batch does not tell you about the next. Your oncologist or hepatologist can look at what you are taking alongside the liver tests and decide what to pause.
Who this does not apply to
Most of the concern here is for people whose liver is already under strain: cirrhosis, hepatitis B or C, liver cancer, or cancer treatment that the liver must process. A healthy adult with normal liver tests is at far lower risk, though the hidden alcohol and undeclared medicines still matter.
What it does not say
It does not say that traditional medicine has no place in a family's care. Some families find comfort, appetite and routine in it. Can I take Ayurveda alongside my treatment? covers how to talk that through. It also does not replace cancer treatment. A liver tumour that is small today may not stay treatable if care is delayed.
If you are unsure whether something is safe with treatment, call the CION helpline before giving the next dose.Questions we are asked
Common questions about traditional medicines and the liver
Can heavy metals in medicines cause liver cancer?
Long-term arsenic exposure is a known cancer risk, including in the liver. For lead and mercury the bigger concern is direct damage to the liver, kidneys and nerves. For someone who already has liver cancer, the main worry is extra strain on a liver that has little to spare.
How do I know if a tonic contains alcohol?
Check the label for alcohol content or a note that it is self-generated by fermentation. Many labels do not say clearly. If you are unsure, show the bottle to your doctor or pharmacist, and do not give it to someone with cirrhosis until you have asked.
Can a blood test show metal poisoning?
Blood or urine tests can measure lead, mercury and arsenic. They are not routine, so your doctor will decide whether they are needed based on what was taken, for how long, and the symptoms. Bring the product with you to help that decision.
Should we stop the traditional medicine during chemotherapy?
Ask the oncologist before starting, stopping or continuing anything. Often the advice is to pause during active treatment because liver changes become hard to explain. The decision is made with you, based on what the product is and how the liver is coping.
Is a government-licensed product free of metals?
A licence and good manufacturing standards lower the risk, but they cannot promise that every batch is clean. Products bought online, abroad or without a label carry more uncertainty. For anyone with liver disease, the safest step is to show the product to the treating team.
My father hid his tonic from the doctor. What should I do?
Bring it up gently at the next visit, or call ahead. You do not need to blame anyone. Families hide these things because they fear being scolded, and the team has heard it many times. What matters is that the doctor now knows.
Can metal or alcohol damage be reversed?
Often the liver improves once the source is stopped, especially if it is found early. Some metal poisoning needs specific treatment from a specialist. Damage on top of cirrhosis can be slower to recover, which is why it is better to ask before taking than to treat afterwards.
Where can I get help with this?
Your oncologist, your hepatologist or a hospital pharmacist can look at what you are taking. If you are already under care for liver cancer at CION, call the helpline and someone will tell you whether a product should be paused before the next visit.
Your Specialists
Meet CION's liver cancer specialists. Bring your scan reports and liver blood tests.
Our medical and surgical oncologists plan liver cancer care together, weighing the tumour and how well your liver works before choosing surgery, a liver-directed procedure or medicines.
Medical Oncologist
Dr. C. Raghavendra Reddy
MBBS(Gold Medal), DNB(General Medicine), DM(Medical Oncology)(Gold Medal)
Medical Oncologist
Dr. Bharati Devi Gorantla
MBBS, MD(General Medicine), DM(Medical Oncology)(Adyar,Chennai), ECMO, MRCP SCE(UK)
Medical Oncologist
Dr. Owais Mohammed
MBBS, MD (General Medicine), DrNB (Medical Oncology), ECMO, MRCP SCE (Medical Oncology) (UK)
Medical Oncologist
Medical Oncologist
Surgical Oncologist
Dr. Muralidhar Muddusetty
MBBS (AIIMS), MS (Surgery) (AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh)
Surgical Oncologist
Want a specific doctor for your case? Mention them when booking.
Book Free ConsultationBook an appointment with our specialist
Share your name and number — we'll call you back within 30 minutes to schedule your consultation.
Sources
- NCCIH — Ayurvedic Medicine: In Depth
- NCCIH — Using Dietary Supplements Wisely
- MedlinePlus — Herbal Medicine
- World Health Organization — Arsenic
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
Keep reading
Related pages
Heavy metals in some traditional preparationsMore on metals during liver cancer treatmentHow to tell your oncologist without being judgedWords to use at the next visitHerb-induced liver injury explainedHow a remedy can damage the liverArsenic in groundwater and liver cancerThe other common route of arsenic exposure
Talk to us
Not sure whether something is safe with liver treatment?
Tell us what is being taken and we will help you raise it with the treating oncologist, without judgement. One helpline serves every CION centre.