Prednisolone and Alcohol: What to Know About Drinking
Can you drink alcohol on prednisolone? Yes, the NHS says you can. Here is how to cut the risks to your stomach, mood, blood sugar and bones if you do.
By Reece Douglas · Founder, FreshPlate
Yes, you can drink alcohol while taking prednisolone. The NHS says so directly, and no interaction stops the tablets working. But alcohol and prednisolone share some side effects, so together they can add up.
Below: how the overlap affects your stomach, mood, blood sugar and bones, how to take the tablets, and which foods to avoid.
Can you drink alcohol while taking prednisolone?
Yes, you can drink alcohol while taking prednisolone. The NHS answers the question in those words, and nothing in the standard guidance says a drink will make the medicine less effective or dangerous by itself.
That does not make alcohol a free pass. Prednisolone is a steroid, and steroids can irritate the stomach lining, affect mood and sleep, raise blood sugar, and thin bones over time. Alcohol can do all four as well, so the same systems are under pressure from two directions.
Your situation matters more than the general rule. The dose, the length of the course and the condition you are treating all affect how cautious to be. On a short course of a few days for an asthma flare or allergic reaction, an occasional drink carries little extra risk for most people. On a long course or high dose, or with stomach problems, diabetes or low mood, be more careful and ask your pharmacist.
- Short course, low dose — usually fine in moderation — the overlap in side effects is small over a few days
- Long course or high dose — keep drinks few and spaced out — stomach, bone and blood sugar effects build up over weeks
- Stomach problems, diabetes or low mood — talk to your pharmacist or GP first — alcohol can aggravate each of these
Why does alcohol add to prednisolone's side effects?
Alcohol adds to prednisolone's side effects because both act on the same four areas: the stomach lining, mood and sleep, blood sugar, and bone strength. Neither cancels the other out, so the effects stack.
Stomach irritation and ulcer risk
Prednisolone can upset the stomach and cause indigestion, which is why the NHS tells you to take it with breakfast. Alcohol also irritates the stomach lining. Drinking on an empty stomach while on a steroid is the combination most likely to cause heartburn, nausea or pain.
Steroids can, in some people, contribute to stomach ulcers, particularly alongside anti-inflammatory painkillers such as ibuprofen or aspirin. Alcohol is a further irritant. If you get black or tarry stools, vomit blood or something that looks like coffee grounds, or have severe stomach pain, get urgent medical help.
Mood, sleep and anxiety
Prednisolone can cause mood swings, irritability, anxiety, low mood and trouble sleeping, more commonly at higher doses. Alcohol is a depressant that disrupts sleep quality and can worsen anxiety the next day. If your mood is already unsettled on the tablets, drinking is likely to make it worse. Tell your doctor if you notice significant changes in mood or thinking while on prednisolone, whether or not you drink.
Blood sugar
Steroids can raise blood sugar, and some people develop high readings or even steroid-induced diabetes on long courses. Alcohol can push blood sugar up or down depending on how much you drink, whether you eat, and what the drink contains. Sugary mixers, beer and sweet wines add carbohydrate. If you have diabetes or are on a high dose, our guide to foods that help control blood sugar is a useful companion, and your diabetes team should know you are taking a steroid.
Bone density
Prednisolone taken for several months or longer can weaken bones, which is why long-term users are often advised to look after their calcium and vitamin D intake. Heavy regular drinking also harms bone. Together they raise the long-term risk of fractures, so if you are on prednisolone for months, keeping alcohol low protects your skeleton as well as your stomach.
Should you take prednisolone with food?
Yes, take prednisolone with food, usually as a single dose once a day with breakfast unless your doctor or pharmacist says otherwise. The NHS advice is to take it with breakfast so it does not upset your stomach.
A morning dose also suits the body: steroids can keep you awake if taken late, so taking it early lowers the chance of sleep problems. If you miss a dose, follow your leaflet or ask your pharmacist rather than doubling up.
If you plan to drink, do not skip the tablet or the breakfast to compensate. Take the dose as normal, with food, and eat properly before and during any drinking.
- With breakfast — recommended — protects the stomach and keeps the dose to once a day
- On an empty stomach — avoid — more likely to cause indigestion and nausea
- Late in the day — avoid unless told otherwise — can disturb sleep
- Drinking the same day — still take it with food — never skip a dose to make room for alcohol
Which foods should you avoid on prednisolone?
The one food to avoid completely is real liquorice. The NHS says not to eat it while taking prednisolone, because it is thought to increase the amount of prednisolone in your body and raise the risk of low potassium.
Otherwise the guidance is gentle. The NHS suggests avoiding rich or spicy food if you are getting indigestion, since it may help. Milk and other calcium-rich foods are useful, because they help protect your bones on long-term treatment. For more on eating on a steroid, see our prednisone diet guide and the calcium without dairy list if you avoid milk.
- Real liquorice — avoid — raises prednisolone levels and the risk of low potassium
- Rich or spicy food — take care — may help with indigestion if you are getting it
- Alcohol — fine in moderation — the NHS says you can drink, but it can add to stomach, mood, blood sugar and bone effects
- Milk, cheese and leafy greens — fine, and helpful — good calcium sources to protect your bones on long-term treatment
Check labels for liquorice
Liquorice turns up beyond sweets: herbal teas, some cough lozenges, certain gums and some liqueurs. A drink containing real liquorice, such as some aniseed-flavoured spirits and liquorice liqueurs, counts. If you are not sure, check the label or ask a pharmacist.
How can you drink more safely on prednisolone?
To drink more safely on prednisolone, keep to a small amount, eat first, drink water alongside, and avoid drinking at all if your stomach, mood or blood sugar is already unsettled. There is no special safe number of units for steroid users, so the usual UK low-risk guideline of no more than 14 units a week, spread over several days, is a sensible ceiling, and less is better on a long or high-dose course.
These habits help.
- Eat a proper meal first — protects the stomach lining — never drink on an empty stomach while on a steroid
- Alternate with water — slows how much you drink — also helps with dehydration and sleep
- Pick lower-sugar drinks — easier on blood sugar — avoid sweet cocktails, sugary mixers and dessert wines
- Skip the drink on rough days — stomach pain, heartburn, low mood or high readings — wait until they settle
- Avoid mixing with anti-inflammatory painkillers — reduces ulcer risk — check with your pharmacist before taking ibuprofen or aspirin
When to avoid alcohol altogether
Consider skipping alcohol on prednisolone if you have a history of stomach ulcers, diabetes that is hard to control, a noticeable change in mood on the tablets, or worries about your bones on a long course. In those cases, talk to your pharmacist or GP rather than relying on a general rule.
How FreshPlate helps you eat and drink around prednisolone
FreshPlate's free food and medication interaction checker lets you search prednisolone and see at a glance which foods and drinks are fine, which need care and which to avoid, including liquorice, rich or spicy food and alcohol.
In the app, once you add prednisolone to your profile, we build recipes around it automatically: breakfasts you can take the tablet with, calcium-rich options for bone protection, lower-sugar choices if blood sugar is a concern, and no real liquorice in anything. You can see the reasoning behind each choice. Always follow the advice of your doctor or pharmacist for your own dose and circumstances.
Frequently asked questions
Can I have one glass of wine on prednisolone?
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Yes, the NHS says you can drink alcohol while taking prednisolone, and a single glass is unlikely to cause a problem for most people. Have it with food, and skip it if your stomach, mood or blood sugar is already unsettled.
Does alcohol make prednisolone less effective?
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No, there is no sign that alcohol stops prednisolone working. Alcohol and prednisolone share side effects, such as stomach irritation, mood changes, raised blood sugar and bone thinning, so drinking can add to them.
What should I not eat while taking prednisolone?
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Avoid real liquorice, as it is thought to raise prednisolone levels and increase the risk of low potassium. The NHS also suggests avoiding rich or spicy food if you get indigestion.
When is the best time to take prednisolone?
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Usually as a single dose once a day with breakfast, unless your doctor or pharmacist says otherwise. Taking it with food helps protect your stomach, and a morning dose is less likely to disturb your sleep.
Can prednisolone and alcohol cause stomach ulcers?
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Both can irritate the stomach lining, and steroids may add to ulcer risk in some people, especially alongside anti-inflammatory painkillers. Get urgent help if you have severe stomach pain, black stools or vomit blood.
Sources
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