Hematologist
CION Cancer Clinics
Steroids for GVHD and their side effects | CION Cancer Clinics
Steroids such as prednisolone are usually the first treatment for GVHD because they calm donor immune cells quickly. Side effects are common: high blood sugar, infections, poor sleep, hunger, weight gain and weaker muscles. Most ease as the dose is slowly reduced. Steroids must never be stopped suddenly. This page explains what to expect, what to watch for and what it cannot tell you. At CION Cancer Clinics, our haematology team assesses whether a transplant or CAR-T fits your situation and coordinates care with qualified centres.
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Medically reviewed by Dr. Basudev PokhrelConsultant Haematologist · last reviewed September 2026, next review due September 2027
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The short answer
Why are steroids the first treatment for GVHD?
Steroids are usually the first treatment for GVHD because they calm the donor immune cells quickly and work across the skin, gut, liver and other organs at once. The trade-off is side effects, which are common, mostly manageable, and usually ease as the dose is slowly reduced.
Which steroids are used
The medicines most often used are prednisolone as tablets and methylprednisolone through a drip in hospital. Mild skin GVHD may be treated with a steroid cream alone. For gut GVHD, a steroid that acts mainly inside the gut, such as budesonide, is sometimes added. Your transplant team chooses the medicine and the dose for your situation.
How long you stay on them
Most people stay on steroids for weeks to months. Once GVHD settles, the dose is brought down slowly in planned steps. For chronic GVHD, the longer-lasting form, the course is usually longer still.
Who they do not suit on their own
Steroids do not settle GVHD for everyone. If GVHD gets worse, or does not improve, or comes back each time the dose is lowered, your team will add or switch to a second-line medicine. Steroids also need extra care in people with diabetes, thinning bones, stomach ulcers or a current infection.
Your dose is set by your transplant team. Never start, stop, skip or change a steroid dose on your own.
!
Never stop steroids suddenly
After a long course your body stops making enough of its own steroid. Stopping suddenly, or missing doses because of vomiting, can cause severe weakness, dizziness, confusion and collapse. If you cannot keep your tablets down, or you have a fever, go to the nearest emergency department now or call 108, and say you take steroids after a transplant.
Not sure whether this applies to you?
Ask an oncologistWhat to expect
What side effects do steroids cause?
Not everyone gets all of these. Most are linked to the dose and how long you take it, and many improve as the dose comes down.
Higher blood sugar
Steroids push sugar up, even in people who never had diabetes. Your team will check your sugar. Some people need tablets or insulin for a while.
Infections
Steroids lower immunity further. Infections can also look milder than they are, so a low fever still matters. Preventive antibiotics or antivirals are often given alongside.
Mood and sleep
Feeling restless, irritable, low or unusually high, and sleeping badly, are common. Tell the team, especially about low mood or confused thinking.
Appetite, weight and face shape
Hunger increases, weight rises and the face can look rounder. This mostly settles after the course ends.
Muscles and bones
The thigh and upper arm muscles weaken, making stairs or getting up from the floor harder. Long courses can thin the bones.
Your team may suggest
- Gentle daily exercise
- Calcium and vitamin D checks
- A bone density scan
Stomach, eyes and blood pressure
Indigestion, raised blood pressure and, with long use, cataracts (clouding of the lens of the eye) can occur. A stomach-protecting tablet is often prescribed.
The course
What does a course of steroids for GVHD look like?
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Starting treatment
Severe GVHD may start with a drip in hospital. Milder GVHD is often treated with tablets at home. You will be told the time of day to take them, usually in the morning with food.
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Checking the response
The team watches the rash, stool frequency, liver tests and your weight closely in the first days and weeks, to see whether GVHD is settling.
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Slowly reducing the dose
Once GVHD is controlled, the dose comes down in small steps. A flare during this stage is common and does not always mean treatment has failed.
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Stopping, and afterwards
The last steps are the slowest, so your body can restart its own steroid production. Keep carrying your steroid card or treatment summary for some months after you stop.
At home
What can you do at home while on steroids?
- Take tablets at the same time each day, with food
- Check blood sugar as often as your team asks
- Check your temperature whenever you feel unwell
- Cut back on sweets, fried snacks and extra salt
- Walk every day, as much as you comfortably can
- Carry a list of your medicines when you travel
- Tell any doctor or dentist that you take steroids
- Keep enough tablets so you never run out
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Commonly believed
What do families often believe about steroids?
"Steroids are dangerous, so we should take as few as possible."
Uncontrolled GVHD can damage the gut, liver and skin badly. The dose is chosen to control it, then reduced. Taking less than prescribed can let GVHD flare.
"The rash has gone, so the tablets can stop now."
Steroids must come down slowly on a plan. Stopping early risks a flare and a sudden drop in the body's own steroid levels.
"The weight gain and round face are permanent."
For most people these changes fade over the months after the dose is reduced and stopped. Gentle exercise and sensible eating help.
"A herbal remedy can replace steroids."
Nothing herbal has been shown to control GVHD. Some remedies affect transplant medicines or the liver. Tell your team about anything you take.
Being straight with you
What can this page not tell you?
This page cannot tell you your dose, how long your course will last, or how your GVHD will respond. Those depend on where GVHD is, how severe it is, and how your body handles the medicine. Your transplant team decides them, and changes them as they go.
When side effects become hard to live with
Tell the team rather than quietly cutting back. There are ways to manage most side effects, such as treating high sugar, protecting the stomach and bones, or helping with sleep. Sometimes a second medicine can be added so the steroid dose comes down faster.
For the son or daughter managing the tablets
Steroid doses often change from one clinic visit to the next. Keep one written chart at home showing today's dose, and update it after every review. Bring the chart and the tablet strips to each appointment. If two doctors have given different instructions, call the transplant team before giving the next dose, rather than guessing which one is right.
Getting a second look at the plan
CION's haematology team can review your reports, explain what the plan is aiming for, and help you prepare questions for your transplant centre. CION does not perform transplants, and your transplant team remains in charge of your GVHD medicines.
Questions we are asked
Common questions about steroids for GVHD
Why does my father feel so hungry and cannot sleep on steroids?
Both are common steroid effects. Taking the dose in the morning, as your team advises, often helps sleep. Keep healthy snacks like fruit, sprouts or buttermilk at hand instead of sweets and fried food. If sleeplessness or restlessness is severe, tell the team, because there are ways to help.
My sugar is high on steroids. Will I be diabetic for life?
Usually not. Steroid-related high sugar often improves as the dose comes down, though some people with a family history or earlier borderline sugar keep needing treatment. Keep checking as your team asks, and do not change diabetes medicines on your own.
What if I forget a dose?
Ask your team for written instructions on missed doses when you start, because the answer depends on your plan. If you are unsure what to do, call your transplant team the same day. Do not take a double dose unless they tell you to. A pill box and a phone alarm help.
Can I take steroids during a fast or a festival?
Discuss fasting with your transplant team first. Steroids are usually taken with food to protect the stomach, and fasting can upset blood sugar. Festival sweets can push sugar up sharply. Your team can often adjust timing so you can take part safely.
Why am I given other tablets alongside the steroid?
They protect against steroid side effects. A stomach-protecting tablet, antibiotics or antivirals to prevent infection, and calcium with vitamin D for the bones are common. Each has a reason. Ask the team what each one is for and keep a written list.
Do steroids stop the donor cells fighting the leukaemia?
Steroids calm the immune system broadly, so they can dampen that helpful effect too. This is one reason your team aims for the lowest dose that controls GVHD, and reduces it as soon as it is safe. Your haematologist balances both risks for you.
Is it safe to be around people while on steroids?
You can be with family, but avoid anyone with a cough, cold, fever, chickenpox or shingles. Wash hands often, avoid crowded places where you can, and wear a mask when you must go out. Report any fever, even a low one, to your team straight away.
What if steroids are not working?
If GVHD worsens or does not improve, or flares each time the dose is lowered, your team will consider a second-line medicine such as ruxolitinib or another option. This is common and there are several choices. Your team will explain which suits your situation.
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Sources
- NHS — Steroids
- Cancer Research UK — Steroids
- Cancer.Net — Graft-Versus-Host Disease
- Leukemia & Lymphoma Society — Graft-Versus-Host Disease
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
Ruxolitinib and Second-Line GVHD TreatmentWhat comes next when steroids do not settle GVHDTapering Immunosuppression After TransplantHow medicines are slowly reduced, and what to watchSkin GVHD: Rash, Grading and TreatmentWhen a steroid cream may be enoughGut GVHD: Diarrhoea and When It Is SeriousThe form most likely to need hospital steroidsGraft-versus-Host DiseaseEvery GVHD guide in one place
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