Amoxicillin and Alcohol: The Answer Is Yes, and Here Is Why Everyone Thinks Otherwise

The NHS answer is one sentence long: “Yes, you can drink alcohol while taking amoxicillin.” There is no known interaction between the two. The UK product information for amoxicillin does not list alcohol as an interaction at all, and a systematic review of antibiotic and alcohol warnings found oral penicillins can be used safely alongside drinking.

Most people who land here can stop reading now. The rest of this page explains where the belief came from, and the few things that genuinely are worth knowing.

The NHS answer, in full

The NHS common questions page for amoxicillin answers three separate questions in a way that leaves very little room for doubt.

On alcohol: “Yes, you can drink alcohol while taking amoxicillin.”

On food and drink generally: “You can eat and drink normally while taking amoxicillin.”

On driving: “Yes. Amoxicillin should not affect you being able to drive or cycle.” That one is about the antibiotic. Alcohol is a different matter and the usual rules apply.

That page was last reviewed in June 2025, so it is current guidance rather than something left standing since the 1990s.

Where the belief came from

Amoxicillin belongs to the penicillin family, and penicillins are the most heavily prescribed antibiotics in the UK. If a general belief attaches itself to “antibiotics”, amoxicillin is the drug most people are holding when they go looking for it.

The 2020 systematic review Fact versus Fiction, published in Antimicrobial Agents and Chemotherapy, opens on exactly this point: many antibiotics carry caution stickers warning against alcohol, and data on concurrent use are sparse. Having searched three databases from inception to 2018, the authors reported that available data support the safe use of oral penicillins with concomitant alcohol, alongside cefdinir, cefpodoxime, fluoroquinolones, azithromycin, tetracycline, nitrofurantoin, secnidazole, tinidazole and fluconazole.

Their overall verdict on the field is worth quoting for what it says about the confidence with which this advice is usually given: alcohol and antimicrobial interactions “are often lacking evidence”, and the review “questions common beliefs due to poor, often conflicting data”.

Our reading is that a real and specific warning about one or two antibiotics has been generalised into a rule about all of them, and that the sticker on the box has done more work than the pharmacology ever supported. That is our characterisation, not a claim from the review.

What the product information does and does not say

We read the UK Summaries of Product Characteristics for amoxicillin capsules. The interactions section lists probenecid, allopurinol, tetracyclines, oral anticoagulants and methotrexate. Alcohol does not appear anywhere in it.

That is a searched negative rather than a positive statement of safety, and the distinction matters. The licensed label does not say alcohol is fine. It says nothing about alcohol, which is what you would expect for a drug with no recognised interaction.

The label is also honest about what has not been studied. On driving it says no studies have been performed, but that side effects such as dizziness or allergic reactions could influence your ability to drive. Its three most commonly reported side effects are diarrhoea, nausea and skin rash.

What is actually true about drinking while you are ill

None of the following is an interaction. All of it is worth ten seconds of thought.

Amoxicillin’s common side effects are nausea and diarrhoea. Alcohol causes both. If you drink and then feel rough, you will not know which one to blame, and the version that matters is the one where you decide the antibiotic is disagreeing with you and stop a course you needed.

The NHS antibiotics interactions page makes the same point in gentler language. It says it is unlikely that drinking alcohol in moderation will cause problems with the most common antibiotics, but it also opens with “it’s a good idea to avoid drinking alcohol when taking medicine or feeling unwell”. That is advice about being ill, not about a chemical reaction.

There is also a wider literature on alcohol and the immune system, separate from anything to do with antibiotics. Szabo and Saha, writing in Alcohol Research: Current Reviews in 2015, describe how even moderate amounts of alcohol influence immune responses, often as a subclinical immunosuppression that becomes clinically relevant only after a secondary insult such as a bacterial or viral infection. That is a paper about host defence, not about amoxicillin, and we are not going to stretch it into a claim that a drink will make your chest infection last longer. No source we found shows that.

The most practical risk is the least interesting one. Antibiotic courses depend on remembering to take them, and a heavy night does not help with that. The NHS is explicit that you should finish the course even once you feel better.

Amoxicillin and co-amoxiclav are not the same prescription

Worth checking your box, because these get conflated constantly.

Co-amoxiclav, sometimes sold as Augmentin, is amoxicillin combined with clavulanic acid. Its product information carries a warning that plain amoxicillin does not: hepatic events have been reported, predominantly in men and older patients, sometimes associated with prolonged treatment, and in extremely rare circumstances deaths have been reported. The label says these have almost always occurred in patients with serious underlying disease or taking other medicines known to affect the liver.

Alcohol is not named in that warning, and we are not going to imply that it is. The co-amoxiclav interactions section does not mention alcohol either. But if you have existing liver disease, or you drink at a level you would not want to write down, the presence of a liver warning on your specific prescription is a good reason to ask your pharmacist rather than to read a general page about amoxicillin.

The contraception question

If you were told years ago that antibiotics stop the pill working, that advice has moved on for this class of drug.

The NHS states that amoxicillin does not stop any type of contraception working, including the combined pill, the progestogen-only pill and emergency contraception. It then flags the real risk: if amoxicillin makes you vomit, or gives you severe watery diarrhoea or any diarrhoea lasting more than 24 hours, your contraceptive pills may not protect you from pregnancy, and you should follow the instructions on your pill packet.

Note where that leaves a night out. The route to a problem is being sick, and heavy drinking is a common way to be sick. Ask your pharmacist rather than guessing.

The antibiotics where the answer really is no

The reason the general belief refuses to die is that it is correct for a small number of drugs. The NHS names metronidazole and tinidazole as the two to avoid alcohol with completely, describing sickness, stomach pain, hot flushes, a fast or irregular heartbeat and headaches. It separately flags linezolid, which is affected by fermented drinks such as wine and beer, and doxycycline, which it says may be less effective in people with a history of drinking heavily.

Amoxicillin is on none of those lists. If you are taking two antibiotics, or you have swapped drugs mid-illness, check the name on the current box against the NHS page for that drug.

When the question underneath is about the drinking

Almost everyone reading this wanted a yes or no about a wedding on Saturday, and the answer is on the NHS page.

A smaller group is here because a week without drinking sounded genuinely difficult, and that is the more useful thing to notice. Finding it hard to go a few days without alcohol is a recognised clinical signal rather than a character flaw. The early signs of alcohol dependence and what a functioning drinker looks like are honest places to start. If you drink heavily every day, do not stop abruptly on your own, because unmanaged alcohol withdrawal can be dangerous. Speak to a clinician first.

The Orchid Recovery is a residential addiction and mental health treatment centre in Hang Dong District, Chiang Mai, Thailand, for international English speaking adults. If drinking has stopped being something you can put down, our pages on alcohol addiction treatment and medically supervised detox explain what that involves, our clinical team is listed here, and you can talk to us. Nearly everyone who reads this page needs none of that, and we would rather say so than pretend otherwise.

We have also written about pregabalin and alcohol, which is a genuine and serious interaction rather than a folk belief.

Sources

• NHS, Common questions about amoxicillin
• NHS, Amoxicillin
• NHS, Antibiotics: interactions
• electronic Medicines Compendium, Amoxicillin 500 mg Capsules, Summary of Product Characteristics
• electronic Medicines Compendium, Co-amoxiclav 500mg/125mg film-coated Tablets, Summary of Product Characteristics
• Mergenhagen KA et al, Fact versus Fiction: a Review of the Evidence behind Alcohol and Antibiotic Interactions, Antimicrobial Agents and Chemotherapy 2020
• Szabo G and Saha B, Alcohol’s Effect on Host Defense, Alcohol Research: Current Reviews 2015
• Dolk FCK et al, Antibiotics in primary care in England: which antibiotics are prescribed and for which conditions?, Journal of Antimicrobial Chemotherapy 2018