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Doxorubicin (Adrim, Adriamycin): The Red Injection

Medically reviewed by Dr. Owais Mohammed, Medical Oncologist · Last reviewed September 2026

Your prescription says doxorubicin. The infusion is red, and your urine will be red or pink for a day or two after each cycle. This is the drug clearing — not blood, and not a sign something has gone wrong. The clinical substance is how your oncologist monitors your heart as cycles accumulate.

Medically reviewed by Dr. Owais Mohammed, Medical Oncologist · Last reviewed September 2026

Prescription-only medicine.

Doxorubicin is a prescription-only medicine given under the direct supervision of a specialist oncologist in a hospital or clinic setting. It cannot be started, adjusted, or stopped on the basis of anything read online. It is not suitable for everyone — see who this is not for below.

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In short

Doxorubicin — sold in India as Adrim and Adriamycin — is a red chemotherapy drug given by infusion. Your urine will be red or pink for a day or two after each cycle. This is the drug leaving your body and is harmless. The real clinical concern is its cumulative effect on the heart, which your oncologist monitors actively throughout treatment.

At a glance

What do the terms on your treatment plan mean?

AnthracyclineThe family of chemotherapy drugs that doxorubicin belongs to. All anthracyclines are naturally pigmented red or orange — which is why the infusion is red and why your urine changes colour for a day or two after treatment.

Cumulative doseThe running total of all doxorubicin received across every cycle. Your oncologist tracks this because the cardiac risk rises with the lifetime total, not just with any single cycle.

CardiotoxicityA reduction in the heart muscle's pumping efficiency that can develop gradually during treatment. It may occur without obvious symptoms, which is why cardiac scans are repeated throughout your course.

Ejection fraction (EF)A measure of how much blood the heart pushes out with each beat. Your team establishes your baseline before your first infusion and compares later readings to it during treatment.

In detail

Why is doxorubicin red, and why does it turn your urine red?

Doxorubicin is red because of its molecular structure. The chemical group responsible for its activity against cancer cells is also responsible for its colour. Nothing is added to make it red.

After each infusion, your urine will be red or pink for a day or two. This is the drug and its breakdown products being cleared through your kidneys. It is one of the most predictable and well-documented effects of this medicine.

If nobody warned you, finding red in the toilet — especially late at night — can be frightening. Write it in your diary on each infusion day: the colour change is coming and it is expected. If you are ever unsure, call your team rather than waiting until your next appointment.

Doxorubicin is sometimes called the 'red devil'. The name comes from its colour and from a reputation it earned when side-effect management was far less developed than it is today. The nickname has stuck; the protocols around it have changed considerably.

Eligibility

Who is doxorubicin not given to?

Doxorubicin is not suitable for everyone. Several situations make it inadvisable or require a different plan:

People who have already received the maximum lifetime cumulative amount of doxorubicin or a related anthracyclineFurther exposure would carry unacceptable cardiac risk.
People whose heart pumping function is significantly reduced, as measured by echocardiogram before treatment begins.
People with a recent heart attack, uncontrolled arrhythmia, or severe heart failure.
People with severe liver impairmentDoxorubicin is processed by the liver, and reduced clearance raises toxicity risk.
People who have had a serious allergic or toxic reaction to doxorubicin or another anthracycline.
During pregnancyIt is not given unless there is no safe alternative, and that decision requires formal specialist review.

Eligibility is decided by an oncologist on the individual case, using your medical history, organ function tests, and the full treatment plan. This list is not exhaustive.

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In detail

Why does your oncologist monitor your heart throughout treatment?

Doxorubicin can reduce the heart's pumping efficiency — a risk that accumulates with the total amount received across all cycles, not just any single one. This is the most significant long-term concern with this drug, and managing it is a routine part of treatment planning according to NCCN and ASCO guidance.

Before your first infusion, you will have an echocardiogram — an ultrasound of the heart — to establish your baseline ejection fraction. Your team repeats this at intervals during treatment and compares each result to your starting baseline. If the reading falls significantly, your oncologist will review the plan.

There is a defined lifetime cumulative limit on how much doxorubicin can safely be received. Your oncologist calculates this individually. If you ever need cancer treatment again — even years from now — your previous exposure to this drug class will matter. Keep a copy of your treatment summary.

Most people complete their planned course without their cardiac function reaching a level that requires a change. The monitoring exists to catch early change and act on it, not because a problem is inevitable.

Step by step

What happens on the day of your infusion?

Blood test before the infusion

A blood sample is taken first to check your counts are in a safe range. Your nurse or oncologist reviews the result before the infusion proceeds.

Intravenous access is placed

Doxorubicin is given through a vein — via a cannula, a central line, or a port if you have one. It is not available as a tablet or an injection you give yourself at home.

Anti-nausea medicines are given first

Medicines to prevent nausea are given through your line before the chemotherapy itself. You will be awake and comfortable throughout.

The red infusion runs

The drug infuses over a period your team sets. The red colour in the bag and the line is the drug itself — entirely normal.

Expect red urine that evening

From that evening or overnight, your urine will be red or pink. This is expected. It returns to your normal colour within a day or two.

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Common questions

Frequently asked questions

Is the red in my urine blood?

Almost certainly not, if you have just had a doxorubicin infusion. Doxorubicin and its breakdown products are red, and they are cleared through the kidneys — which is why your urine changes colour for a day or two. This is an expected and well-documented effect, not a sign of bleeding. The colour alone, with no pain or burning, is the drug clearing. If you are unsure, or if the colour persists beyond a day or two after your infusion, call your team the same day rather than waiting for your next appointment.

Should I be worried because this drug is called the 'red devil'?

The nickname refers to the drug's colour and to a reputation it had when medicines to control side effects like nausea were far more limited than they are today. Many of the experiences that gave doxorubicin that name are now actively prevented — anti-nausea medicines given before each infusion make a significant difference. The drug does have real side effects, and the cardiac monitoring exists precisely because the risk is real. But the nickname reflects an older era of treatment, not what current protocols deliver.

How does my oncologist know if my heart is being affected?

Before treatment starts, you have an echocardiogram — a painless heart ultrasound — to measure your ejection fraction, which is how well your heart pumps. Your team repeats this at set intervals during treatment and compares each result to your starting baseline. If it falls significantly, your oncologist reviews whether to continue, pause, or adjust the plan. There is also a defined lifetime limit on the total cumulative amount of this drug class considered safe, which your oncologist tracks across all cycles. NCCN and ASCO guidance both recommend this monitoring approach.

Will doxorubicin cause hair loss?

Hair loss is very common with doxorubicin, and it is usually complete loss rather than gradual thinning — affecting the scalp and other areas of the body. It typically begins within the first few weeks after the first infusion. Hair does grow back after treatment ends, though it may return with a different texture or curl at first. Scalp cooling (cold cap) is available at some centres as a way to reduce scalp hair loss, but it is not appropriate for every regimen. Ask your oncology nurse whether it is an option for your specific treatment plan.

Can I receive doxorubicin again if my cancer comes back in future?

This depends on how much you received during your first course and how your heart function has held up. There is a lifetime cumulative limit for this class of drug, and your previous exposure counts toward it. Your oncologist will review your total prior dose and your current cardiac function before deciding. Keeping a copy of your treatment summary or discharge records makes this straightforward, particularly if you are treated at a different centre in future.

What other side effects does doxorubicin commonly cause?

Alongside hair loss and the red urine, side effects commonly documented in NCCN and ASCO guidance include nausea and vomiting in the day or two after infusion — managed with anti-nausea medicines given beforehand — a drop in blood counts in the week or so after each cycle, which raises infection and bleeding risk, mouth soreness, fatigue, and changes in taste. Your team will give you written information on what to watch for between cycles and when to call. The red urine and hair loss are the two effects people are most often unprepared for; your team expects both.

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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 Oncologist

MBBS · DNB Internal Medicine (Sir Gangaram, New Delhi) · DM Medical Oncology (AIIMS)

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Dr. C. Raghavendra Reddy

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MBBS (Gold Medal) · DNB · DM (Medical Oncology, Gold Medal) · Kukatpally

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Dr. Bharati Devi Gorantla

Medical Oncologist

MBBS · MD · DM (Adyar, Chennai) · ECMO · MRCP SCE (UK)

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Dr. Owais Mohammed

Medical Oncologist

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Dr. T. Raghavender Reddy

Medical Oncologist

MBBS · DM (Medical Oncology) · MD (Radiation Oncology) · L.B. Nagar

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Dr. N. Kiranmayee

Medical Oncologist

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