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Anthracycline chemotherapy
Epirubicin: Side Effects and What to Expect
Medically reviewed by Dr. N. Kiranmayee, Medical Oncologist · Last reviewed September 2026
Epirubicin is an anthracycline chemotherapy used in breast cancer regimens including FEC and EC. This page explains what happens on treatment day, which side effects to expect, and why your heart is monitored throughout.
Epirubicin is a prescription-only medicine given in hospital under the supervision of a specialist oncologist. It cannot be started, adjusted or stopped on the basis of anything read online. This page is for information only and is not a substitute for advice from the team managing your treatment. It is not suitable for everyone — see who this is not for below.
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Epirubicin is an anthracycline chemotherapy used in breast cancer regimens such as FEC and EC. Its most common side effects are nausea, hair loss, low blood counts, and mouth soreness. The heart is monitored because anthracyclines can reduce cardiac function over time — the risk accumulates with the total amount received across all cycles.
Step by step
What happens on the day you receive epirubicin?
A blood test before each cycle confirms that your white cell and platelet counts are high enough for treatment to proceed. If they are too low, your team may delay the dose by a week.
A cannula is placed in a vein in your arm, or your implanted port is accessed. The site must be confirmed secure because epirubicin is a vesicant — if it leaks outside the vein, it can cause serious tissue damage.
Anti-emetic medicines are given before epirubicin. You will usually go home with anti-nausea tablets to take over the following 48 hours.
Epirubicin is a red solution. Your urine will often be red or pink for up to 48 hours afterwards. This is the drug clearing your body, not blood.
Burning, stinging or swelling at the needle site means the infusion must be stopped and checked. Do not wait until the infusion finishes to say something.
Your team will confirm you are stable and tell you which symptoms to watch for, and how to reach the unit if needed.
In detail
What is epirubicin and how does it compare with doxorubicin?
Epirubicin (marketed in India as Farmorubicin, and in various generic forms) is an anthracycline chemotherapy. It works by binding to DNA inside cancer cells and blocking topoisomerase II, an enzyme cancer cells need to divide.
It is used most often in breast cancer — FEC (epirubicin, 5-fluorouracil, cyclophosphamide) and EC are the most common regimens in Indian practice — and also in some stomach and oesophageal cancers.
Epirubicin is structurally almost identical to doxorubicin: a single chemical group is repositioned. That change alters how the body processes the drug. At equivalent antitumour doses, epirubicin is associated with a lower risk of cardiac toxicity than doxorubicin, according to ESMO and NCCN guidance — which is why it is the preferred anthracycline in many breast regimens.
Eligibility
Who should not receive epirubicin?
Epirubicin is not suitable for everyone, and an oncologist decides eligibility based on the individual's full clinical picture. It is not used in the following situations:
- Severe liver impairment: Epirubicin is cleared by the liver. Significantly raised bilirubin reduces clearance and increases the risk of serious toxicity.
- Prior anthracycline exposure at or near the cumulative dose limit: People who have already received doxorubicin or other anthracyclines may have limited remaining cardiac reserve, making further anthracycline use unsafe.
- Significant pre-existing heart disease: Recent heart attack, severe heart failure, or uncontrolled arrhythmias.
- Severely reduced bone marrow function before treatment begins.
- Active, uncontrolled infection.
- Pregnancy. Epirubicin is harmful to a developing foetus.
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At a glance
What side effects can epirubicin cause?
In detail
Why is your heart monitored during epirubicin treatment?
Epirubicin and all anthracyclines can, over time, weaken the heart's pumping function. This effect is cumulative — it is linked to the total amount received across every course of anthracycline treatment, not to any single dose.
An echocardiogram or MUGA scan before treatment sets a baseline. Repeat scans during treatment allow any change to be caught and acted on before symptoms appear.
If you have previously received doxorubicin or had radiotherapy to the chest, your oncologist will account for the total cardiac exposure already received when deciding whether and how epirubicin can be used.
Report new or worsening shortness of breath, swollen ankles, palpitations, or dizziness the same day. These need prompt assessment during any anthracycline course.
Worth knowing
Did you know?
The red colour in your urine after an epirubicin dose is the drug being excreted — not blood. ESMO anthracycline guidance describes this as an expected finding for up to 48 hours after each infusion.
It does not need investigation on its own. Tell your team if it lasts longer than 48 hours or is accompanied by pain or difficulty passing urine.
Source: ESMO Clinical Practice Guidelines — Anthracycline Administration
Common questions
Frequently asked questions
Why is my urine red after epirubicin?
Epirubicin is a red compound, and it passes into the urine as your kidneys clear it from the body. The colour is harmless and expected for up to 48 hours after each infusion. It is not blood and does not need investigation on its own. Tell your team if it lasts longer than 48 hours, or if you have pain or burning when you pass urine.
Will I lose my hair on epirubicin?
Hair loss is very common with anthracycline-containing regimens, and most people do lose scalp hair. It usually begins two to three weeks after the first dose, and body hair often thins as well. Hair grows back after treatment ends — the texture or curl may be slightly different at first. A referral for a wig fitting can usually be arranged through your treatment centre.
How is epirubicin different from doxorubicin?
Both are anthracyclines and work by the same mechanism. The chemical difference is small — one group is repositioned — but it changes how the body processes the drug. ESMO and NCCN guidance indicates that at equivalent antitumour doses, epirubicin carries a lower risk of cardiac toxicity than doxorubicin. Both share a small long-term risk of treatment-related acute myeloid leukaemia, which your oncologist will discuss if it is relevant to your plan.
What signs of infection should I watch for between cycles?
A fever — particularly one that is sudden or accompanied by shaking chills — in the one to two weeks after a cycle means call the oncology unit the same day, not at your next appointment. Epirubicin reduces white cell counts most sharply in this window, and infection during this period can escalate quickly. If you are uncertain whether it is serious enough to call about, call anyway.
Do I need an echocardiogram before starting epirubicin?
In most cases, yes. A baseline scan of your heart's pumping function — either an echocardiogram or a MUGA scan — allows your team to detect any change caused by treatment. Without a baseline, they cannot distinguish a treatment effect from a pre-existing condition. Whether repeat scans are done during treatment depends on the total planned dose and your cardiac history. If a scan has not been mentioned, it is reasonable to ask.
What should I do if the infusion site becomes painful?
Tell your nurse straight away — do not wait for the infusion to finish. Epirubicin is a vesicant: if it leaks outside the vein into surrounding tissue it causes a chemical burn that can lead to serious, sometimes permanent, tissue damage. The infusion must be stopped and the site assessed immediately. Reporting promptly limits the damage; staying quiet does not protect you.
Who would be treating you
The medical oncologists on the CION panel
Chemotherapy is prescribed, dosed and supervised by a medical oncologist. These are the six on the CION panel.
Dr. Naresh Gundu
Medical OncologistMBBS · DNB Internal Medicine (Sir Gangaram, New Delhi) · DM Medical Oncology (AIIMS)
Dr. C. Raghavendra Reddy
Medical OncologistMBBS (Gold Medal) · DNB · DM (Medical Oncology, Gold Medal) · Kukatpally
Dr. Bharati Devi Gorantla
Medical OncologistMBBS · MD · DM (Adyar, Chennai) · ECMO · MRCP SCE (UK)
Dr. T. Raghavender Reddy
Medical OncologistMBBS · DM (Medical Oncology) · MD (Radiation Oncology) · L.B. Nagar
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This page explains what the medicine does in general. What it cannot tell you is how your own regimen was chosen, what your schedule looks like, or which of these effects apply to you — that needs your reports and a conversation.
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