Medical Oncologist
CION Cancer Clinics
A medicine safety checklist for people with liver disease | CION Cancer Clinics
Most regular tablets can still be taken with a damaged liver, but some need a smaller amount, a swap or stopping. The safe way to find out is one full review of every medicine, supplement and tonic you take. This checklist helps you and your family prepare for that review, spot the risky medicines and know when a problem needs hospital today. At CION Cancer Clinics, our team supports patients and families through symptoms, follow-up and life during and after treatment.
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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
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The short answer
Which of my medicines are still safe with a damaged liver?
Many of your regular tablets are still safe, but some need a lower amount, a different timing or a swap, and a few should be stopped. The only safe way to know is to put every medicine you take in front of one doctor who knows how your liver is working today.
Why the liver changes the rules
The liver clears most medicines from the blood. When it is scarred by cirrhosis or carrying a tumour, medicines stay in the body longer and build up. A tablet that suited you for years can start to cause drowsiness, bleeding or kidney strain. People with liver cancer also tend to take the most medicines at once: for blood pressure, sugar, pain, sleep, acidity and the cancer itself.
Who this page is for
This checklist is for anyone with liver cancer, cirrhosis or a liver that doctors have called damaged, and for the family member who manages the tablets. If cancer has spread to your liver from somewhere else, the same habits help, though your liver may still be working well. The page on how a damaged liver changes medicines explains the science in more depth.
This is a checklist for conversations with your doctor. It is not a list of what to stop.The checklist
What should I check for every medicine I take?
Run through these for each tablet, syrup, injection and supplement in the house, not only the ones from the cancer team.
Does every doctor know about my liver?
The heart doctor, the diabetes doctor, the dentist and the local pharmacist each need to hear that you have liver disease. Many risky prescriptions happen because one of them did not know.
Is it on my single medicine list?
Keep one written list with the name, strength and how often you take each medicine. Carry it to every visit. The page on keeping one medicine list shows a simple way to do this.
Could it cause drowsiness or confusion?
Sleeping tablets, some anxiety medicines and strong painkillers can tip a scarred liver into confusion. Ask before taking any of them.
- Sleeping tablets and sedatives
- Strong painkillers such as morphine
- Some cough syrups and allergy tablets
Could it cause bleeding or kidney strain?
Common painkillers bought over the counter, such as ibuprofen and diclofenac, can cause stomach bleeding and harm the kidneys in people with cirrhosis. Paracetamol is often still allowed, at an amount your doctor sets.
Is the same medicine hiding twice?
Cold and fever remedies often contain paracetamol. Taking one of them with your usual paracetamol doubles the amount without you noticing.
Is it a supplement, tonic or herbal product?
These count as medicines too. Liver tonics, herbal powders and high-strength vitamins can injure a damaged liver. Write them on the list with the rest.
Not sure whether this applies to you?
Ask an oncologistOne review, done properly
How do I get all my medicines reviewed at once?
Collect everything in one bag
Put every strip, bottle, syrup, injection, powder and tonic in the house into one bag, including anything taken only now and then. Ask elders in the family what they have been giving the patient.
Bring your latest blood reports
Bilirubin, albumin, INR (a clotting test) and kidney tests tell the doctor how well the liver and kidneys are clearing medicines right now.
Ask three questions about each one
Do I still need it? Is the amount right for my liver? Is there a safer choice? Write the answer beside each name on your list.
Change one thing at a time
Never stop a blood pressure, heart, sugar or hepatitis B medicine on your own. Stopping hepatitis B tablets suddenly can cause a dangerous flare. Let the doctor decide the order of changes.
Repeat after every change in treatment
Start a new cancer medicine, leave hospital or see a new doctor, and the list needs checking again. Your liver function can change too.
!
When a medicine problem cannot wait
Go to hospital today if the person becomes newly confused, very sleepy or hard to wake, vomits blood, passes black stools, or has fever or pain with a swollen belly. These can follow a new sleeping tablet, painkiller or tonic in someone with cirrhosis. Take the medicine list and the bag of medicines with you.
Commonly believed
What do families often get wrong about liver medicines?
"Paracetamol is the most dangerous painkiller for the liver."
Too much paracetamol harms the liver, but at the amount your doctor sets it is often the safer choice in cirrhosis. The common over-the-counter alternatives carry bigger risks of bleeding and kidney damage. See painkillers to avoid completely.
"Herbal and natural products are gentle on the liver."
Natural does not mean safe. Herbal and dietary products are a known cause of liver injury, and a damaged liver has less in reserve to recover from it.
"If I feel fine, the tablet must be suiting me."
Medicine build-up can creep up slowly. Mild forgetfulness, poor sleep or easy bruising are often blamed on age or worry when a medicine is the cause.
"Fewer tablets is always better for the liver."
Some medicines protect you. Hepatitis B tablets, and medicines that lower pressure in the liver's blood vessels, should never be dropped without your doctor. The goal is the right list, not the shortest one.
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Being straight with you
What can this checklist not tell me?
It cannot tell you whether any one of your medicines is safe for you. That depends on how much of your liver is working, your kidney tests, your other illnesses and the cancer treatment you are on. Two people with the same diagnosis can need very different lists.
It gives no doses
This page deliberately gives no amounts or schedules for any medicine. Doses in liver disease are set person by person and change as the liver changes. A dose that is right for a neighbour or a relative may be wrong for you.
Who this does not apply to
If your liver tests are normal and the cancer is elsewhere in the body, most of these cautions will be looser for you. Your oncologist will say how strict to be. At CION, the medical oncology team reviews the full medicine list as part of planning and follow-up, and works with your hepatologist or physician on liver and hepatitis medicines.
If you are unsure about a medicine tonight, do not take a new one. Call the helpline and ask.Questions we are asked
Common questions about medicines and a damaged liver
Can I keep taking my blood pressure and sugar tablets?
Usually yes, but some need a change. Certain diabetes tablets are cleared by the liver and can drop sugar too low, and some blood pressure medicines become too strong when fluid builds up in the belly. Do not stop them yourself. Ask your doctor to review each one against your latest blood tests.
Is paracetamol safe with cirrhosis?
Often it is, at a lower daily limit that your doctor sets for you. The danger comes from taking too much, or taking it twice without knowing because a cold or fever remedy also contains it. Always check the label of any combination medicine before taking it with your usual paracetamol.
Which painkillers should I avoid?
Common anti-inflammatory painkillers such as ibuprofen, diclofenac and aspirin for pain can cause stomach bleeding and kidney damage in people with cirrhosis. Many are sold without a prescription. Ask your doctor before taking any of them, even a single tablet for a headache or toothache.
Can I take a sleeping tablet if I cannot sleep?
Ask first. Sleeping tablets and sedatives build up in a damaged liver and can bring on confusion or deep drowsiness. Poor sleep in liver disease can itself be an early sign of confusion from the liver, so the doctor may want to treat that cause instead.
Do I need to tell the dentist about my liver?
Yes. Dentists often prescribe painkillers and antibiotics, and a damaged liver can also affect how your blood clots. Tell every doctor, dentist and pharmacist that you have liver disease, and show them your medicine list before they write anything new.
Are vitamins and supplements safe?
Some help and some harm. High-strength vitamin A, some iron tablets and many herbal products can injure a damaged liver. Bring every supplement to your review and ask whether you need it. A food-first approach is usually safer than a cupboard of bottles.
Will my cancer medicines clash with my other tablets?
Some can. Targeted therapy and immunotherapy medicines can interact with other tablets or affect the liver themselves. This is why the cancer team asks for the full list before starting treatment, and again whenever another doctor adds something new.
Where do I start if the list is already long?
Put everything in one bag and book a single review with your oncologist or physician. Bring recent blood reports. If you are not sure who should do the review, call the CION helpline and someone will tell you who to see and what to bring.
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
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Sources
- NHS — Cirrhosis
- NIDDK — Treatment for Cirrhosis - NIDDK
- NCCIH — Using Dietary Supplements Wisely
- Liver UK (formerly British Liver Trust) — Cirrhosis
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
Which of my regular tablets are still safe?Common everyday tablets, one by onePainkillers to avoid completelyThe over-the-counter painkillers that carry the most riskFever and cold medicines that contain paracetamol twiceHow double doses happen without anyone noticingTelling every doctor you have liver diseaseThe simplest habit that prevents risky prescriptions
Talk to us
Not sure which of your tablets are still safe?
Bring your medicine list and recent reports, and a CION oncologist will go through them with you. One helpline serves every CION centre.