You technically can drink small amounts of alcohol while taking amoxicillin‑clavulanate (co‑amoxiclav), but it is not recommended because it can worsen side effects and slow your recovery. Most medical sources advise avoiding or at least minimizing alcohol until you finish the course and feel well again.

Quick scoop

  • There is no strong, direct chemical interaction between alcohol and amoxicillin or co‑amoxiclav like there is with some other antibiotics (for example, metronidazole).
  • However, both alcohol and amox‑clav can cause stomach upset, nausea, dizziness, and tiredness, so drinking can make you feel significantly worse.
  • Alcohol weakens your immune system and can slow healing, so you may take longer to recover from the infection you’re treating.
  • Co‑amoxiclav in particular has a known risk of liver‑related side effects, and alcohol also stresses the liver, so combining them adds extra risk, especially with heavier drinking.

So, can you drink at all?

If you’re otherwise healthy and really want to have a small drink (like one beer or one glass of wine):

  • It is unlikely to cause a severe reaction in most people, but you may feel more nauseated, dizzy, or tired than usual.
  • You should avoid drinking on an empty stomach and drink plenty of water if you do choose to have alcohol.

Most doctors and major health sites still say the safest move is:

  • Avoid alcohol during the full antibiotic course and for at least 24–48 hours after the last dose, especially if you’ve had any liver issues, heavy drinking, or strong side effects from the medication.

When it’s especially important not to drink

You should completely avoid alcohol and call a doctor or urgent care if:

  • You notice yellowing of the skin or eyes, dark urine, or severe upper‑right abdominal pain (possible liver injury).
  • You feel unusually dizzy, confused, very unwell, or you’re vomiting repeatedly.
  • You have liver disease, heavy alcohol use, or are on other liver‑stressing medicines (like high‑dose acetaminophen/paracetamol or certain seizure meds).

Simple rule of thumb

  • Treat the antibiotic course like “sick days”: focus on hydration, food, and rest, and skip alcohol until you’re done and feeling better.
  • If you’re unsure how much is safe for you specifically (because of weight, liver history, other meds, etc.), check directly with your own doctor or pharmacist—they can tailor advice to your situation.

TL;DR: For co‑amoxiclav, it’s safest to avoid alcohol; a small drink probably won’t be catastrophic for a healthy person, but it can make side effects worse and may slow your recovery.

Information gathered from public forums or data available on the internet and portrayed here.