Medical Oncologist
Targeted therapy
Pazopanib (Votrient, Pazonib): — Your Complete Guide
Pazopanib is a targeted therapy tablet taken once daily for advanced kidney cancer and some soft tissue sarcomas. It is not chemotherapy. It works by cutting off the blood supply tumours need to grow, and you take it at home by mouth on an empty stomach.
Medically reviewed by Dr. Bharati Devi Gorantla, Medical Oncologist, MBBS · MD · DM (Adyar, Chennai) · ECMO · MRCP SCE (UK) · Last reviewed August 2026
- Tablet, not an infusion — You take pazopanib at home by mouth. There is no drip or day-care visit for the drug itself.
- Once daily, same time — Consistent timing and an empty stomach are the two rules that matter most for how well it is absorbed.
- Targeted, not chemo — Pazopanib targets the blood supply to tumours rather than attacking all dividing cells the way chemotherapy does.
- Monitoring is part of treatment — Regular blood pressure checks and liver function tests are not optional — they are built into safe use of this drug.
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Pazopanib is a targeted therapy tablet prescribed for advanced kidney cancer and some soft tissue sarcomas. It works by blocking the blood supply that tumours need to grow. You take it once daily by mouth, at the same time each day, on an empty stomach. It is not chemotherapy.
What do these medical terms on your prescription actually mean?
- Pazopanib
- The name of the active drug. Sold in India under the brand names Votrient and Pazonib, among others. The drug is the same whichever brand you are given.
- Tyrosine kinase inhibitor (TKI)
- The class of drug pazopanib belongs to. TKIs block specific proteins cancer cells rely on — in this case, proteins that tell tumours to build new blood vessels.
- Anti-angiogenic
- Angiogenesis means forming new blood vessels. Pazopanib is anti-angiogenic: it is intended to starve a tumour of the blood supply it needs to grow and spread.
- Renal cell carcinoma (RCC)
- The most common type of kidney cancer, and the cancer for which pazopanib is most often prescribed in advanced or metastatic disease.
- Soft tissue sarcoma
- A cancer that starts in connective tissues — fat, muscle, nerves or tendons. Pazopanib is used for certain advanced soft tissue sarcomas after prior chemotherapy.
What do you need to do each day for pazopanib to work properly?
- Take your tablet at the same time every day — consistency matters for keeping a steady level of drug in your blood.
- Take it on an empty stomach. Your oncologist or pharmacist will tell you exactly how long before or after a meal. Follow that instruction every day.
- Swallow the tablet whole. Do not crush, break or chew it.
- Avoid grapefruit and grapefruit juice throughout treatment — it interferes with how your body processes the drug.
- Check your blood pressure regularly, as directed by your team. Know the reading your team wants you to act on.
- Attend every liver function blood test. These detect a serious side effect before it becomes dangerous, often before you feel anything.
- Tell your team about every supplement, herbal remedy or Ayurvedic preparation you are taking — before you start and whenever anything changes.
How does pazopanib work, and which cancers is it used for?
Pazopanib blocks a family of proteins called tyrosine kinases — specifically the ones that signal tumours to grow new blood vessels. Without that blood supply, tumours are less able to grow and spread.
It is most commonly prescribed for advanced or metastatic renal cell carcinoma, which is the most common form of kidney cancer. It is also used for certain advanced soft tissue sarcomas in people who have already received chemotherapy.
Because it is a targeted therapy rather than chemotherapy, it works differently in the body and causes a different set of side effects. Most people keep their hair — though some notice a change in hair colour, which is a known and harmless effect explained below.
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MBBS, MD(General Medicine), DM(Medical Oncology)(Adyar,Chennai), ECMO, MRCP SCE(UK)
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MBBS, MD (General Medicine), DrNB (Medical Oncology), ECMO, MRCP SCE (Medical Oncology) (UK)
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What side effects should you expect on pazopanib?
High blood pressure is the most common significant side effect. It can appear within the first few weeks. Your team will monitor it regularly and may prescribe medication to control it — this does not mean treatment has to stop.
Diarrhoea, nausea and fatigue are common, especially in the first weeks. Tell your team if they are affecting your ability to eat, drink or carry out daily activities, because adjustments can be made.
Liver enzyme changes happen in a proportion of patients and produce no symptoms — which is why the blood tests matter. NCCN and ESMO guidance specifically flags hepatotoxicity monitoring as a requirement during treatment, not a precaution.
Hand-foot syndrome — redness, soreness or blistering on the palms or soles — can develop. Your team can advise on moisturising and footwear adjustments that reduce discomfort. Report it early rather than waiting until it affects your walking.
What happens when you start pazopanib?
Baseline checks before your first dose
Your team will check your blood pressure, run liver and kidney function tests, review your heart tracing and thyroid levels before you start. These establish your personal starting point so any change during treatment is meaningful.
Collecting the prescription
Pazopanib is dispensed as a tablet. Your oncologist will explain how to collect it — in some settings from the hospital pharmacy, in others from an approved retail pharmacy with a valid prescription.
Your first dose and the weeks after
You take your first tablet at home. The first four to six weeks are when most side effects appear. Stay in close contact with your team during this period and report anything new rather than waiting for your next scheduled visit.
Blood tests and blood pressure monitoring
Liver function is checked at regular intervals in the first months of treatment, then periodically. Blood pressure is monitored at every clinic visit. Your team will give you the schedule that applies to you.
Review appointments and scans
You will have clinic appointments to review your blood results, how you are feeling, and how the tumour is responding. Imaging — usually CT, coordinated with a partner centre if PET-CT is needed — is scheduled at intervals your oncologist determines.
What else should you know about taking pazopanib?
Does the timing of my dose around food really matter that much?
Yes, more than with many oral medicines. Pazopanib absorption is significantly affected by food: taking it close to a meal changes the amount that enters your blood, which in turn changes the side effect risk. Your oncologist or pharmacist will tell you the gap to leave. Follow that instruction consistently every day rather than trying to judge it by how hungry you feel — inconsistency creates its own problems. Setting a phone reminder at a fixed time each day is the simplest solution most people find.
My hair has turned lighter or greyer since starting. Is something wrong?
This is a recognised and well-documented effect of pazopanib, not a warning sign. The drug affects the cells that produce pigment in hair follicles, and many people notice lightening, greying or whitening of their hair during treatment. It often partially reverses after treatment ends. It does not require any change to your dose or schedule. Mention it to your team so it is noted in your records, but do not be alarmed by it — it carries no health consequences.
My blood pressure reading is high. Should I stop taking the tablet?
Do not stop pazopanib without speaking to your team first. High blood pressure on this drug is common and expected, and it is usually managed by starting or adjusting blood pressure medication rather than stopping the cancer treatment. Your team should have told you a reading at which to call them — use that number. If you do not have one, any reading that concerns you is a reason to call the same day, not wait for your next appointment. Stopping the tablet without guidance can interrupt treatment unnecessarily.
Can I take Ayurvedic or herbal preparations alongside pazopanib?
You need to tell your team before taking anything in addition to pazopanib, including herbal preparations, Ayurvedic formulations and supplements bought without a prescription. Several plant-based compounds affect the same liver enzymes that process pazopanib, which can raise or lower the level of drug in your blood in ways that affect both efficacy and safety. This is not a judgement about any particular preparation. It is a pharmacology question, and your oncologist needs the information to keep your dose correct. Make a written list and bring it to your next visit.
What do I do if I miss a dose?
If you remember early enough and your next dose is not yet close, take the missed dose. If you are close to the time of your next scheduled dose, skip it and continue with your usual routine. Do not take two doses at once to make up for a missed one — doubling up raises the risk of side effects without improving the benefit. Missing an occasional dose matters less than taking double. If you find yourself frequently missing doses, tell your team; there are practical strategies that help, and your oncologist needs to know.
How will I know if the treatment is working?
You will not feel the drug working, and feeling well does not mean it is or is not helping. Response is assessed through imaging — your oncologist will schedule scans at intervals and compare them against your baseline. Stable disease, where the tumour is not growing, is a meaningful and positive outcome with pazopanib. It does not mean the treatment has failed. Ask at each review what the scan showed and what it means for your next steps — you are entitled to a clear answer.
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Common questions
Frequently asked questions
Is pazopanib the same as chemotherapy?
No. Pazopanib is a targeted therapy, not chemotherapy. Chemotherapy acts on all rapidly dividing cells throughout the body — that is why it causes hair loss, mouth sores and bone marrow effects. Pazopanib targets a specific pathway that tumours use to build blood vessels. Most people do not lose their hair on pazopanib, though some notice a change in hair colour. The side effects, monitoring requirements and how the drug is taken are all different from a chemotherapy regimen.
Can I eat normally while on pazopanib?
Mostly yes, but the timing of your tablet matters. Pazopanib must be taken on an empty stomach because food — particularly a high-fat meal — significantly changes how much of the drug is absorbed. Your pharmacist or oncologist will tell you the exact gap to leave. Outside of that timing window, most foods are fine. The one firm restriction throughout treatment is grapefruit and grapefruit juice, which interfere with the enzyme that breaks down the drug and should be avoided entirely.
How long will I take pazopanib for?
Pazopanib is taken continuously for as long as it is working and you are tolerating it. There is no fixed course of a set number of weeks. Your oncologist will reassess at each review using scan results and how you are feeling, and will continue, adjust the dose or stop treatment based on that assessment. Some people take it for months, others for longer. We do not know at the outset how long any individual will continue — that is answered by how the tumour responds over time.
What blood tests will I need, and how often?
Liver function tests are checked at regular intervals during the first months of treatment and then periodically throughout. Kidney function, thyroid levels and blood count are also monitored at intervals your team will specify. Blood pressure is checked at every clinic visit. Attend every test even when you feel well — the complications being screened for, particularly the liver changes, often have no early symptoms and are found only through the blood results.
Can I drive and travel normally while on pazopanib?
Most people on pazopanib can drive and travel. Fatigue is a common side effect, and if it affects your alertness you should not drive when you feel it strongly. For travel, particularly by air or to remote areas, tell your team beforehand so they know you will be away and can advise on what to do if a new symptom appears while you are travelling. Carry enough tablets for the full trip plus a few extra, keep them in their original packaging, and carry a letter from your oncologist if you are crossing international borders.
Is Pazonib the same drug as Votrient?
Yes. Pazonib is a generic version of pazopanib available in India; Votrient is the original brand. Both contain the same active ingredient at the same dose, and generic medicines must meet regulatory standards for quality and bioequivalence before they are approved. Your oncologist or pharmacist will tell you which version is being prescribed. If you are switched from one brand to another during treatment, mention it to your team so it is noted — though switches between approved versions do not usually cause clinical differences.