Can you drink on a Z-Pack? Azithromycin and alcohol

What the Zithromax label calls a Z-PAK

ZITHROMAX (azithromycin) is a macrolide antibacterial. MedlinePlus calls it a macrolide antibiotic that stops the growth of bacteria, used for bacterial infections. It will not work for colds, flu, or other viral infections.

The label supplies 250 mg tablets in Z-PAKS of 6 and calls that carton a full course in 5 daily doses. One adult row is 500 mg on Day 1, then 250 mg once daily on Days 2 through 5, for mild community-acquired pneumonia, second-line pharyngitis or tonsillitis, and uncomplicated skin infections. Other rows differ, including a 3-day 500 mg course and single 1-gram or 2-gram doses. Follow your prescription. MedlinePlus marks the branded Z-Pak as no longer on the market, with generics possibly available. This July 2026 label still prints the Z-PAK carton.

Sources: Zithromax (azithromycin) tablets and oral suspension, including the Z-PAK carton; Azithromycin

What the label and MedlinePlus say about alcohol

The interactions section names nelfinavir and warfarin. With nelfinavir, monitor liver enzyme abnormalities and hearing impairment. With warfarin, postmarketing reports suggest a stronger anticoagulant effect, although prothrombin time did not change in the dedicated study, and the label says to monitor it. Do not take aluminum- or magnesium-containing antacids at the same time. Alcohol is not named in this prescribing information.

MedlinePlus says to report every medicine and supplement, and to keep your normal diet unless your doctor says otherwise. That diet line does not mention alcohol and is not a drinking instruction. Separate aluminum or magnesium antacids by asking how many hours. MedlinePlus does not print that number. Finish the prescription even if you feel better, unless a serious side effect or your clinician stops it. Stopping early or skipping doses may leave the infection undertreated, and bacteria may become resistant.

NIAAA lists Zithromax (azithromycin) with other infection medicines, including metronidazole (Flagyl) and tinidazole (Tindamax), that can interact with alcohol. The brochure says the list does not include every medicine or every ingredient. Ask a pharmacist or other health care provider, and avoid alcohol if you are taking a medication and do not know its effect.

Sources: Zithromax (azithromycin) tablets and oral suspension, including the Z-PAK carton; Azithromycin; Harmful interactions: mixing alcohol with medicines

Side effects on the label, and the NIAAA alcohol list

The highlights list the most common adverse reactions as diarrhea (5 to 14%), nausea (3 to 18%), abdominal pain (3 to 7%), or vomiting (2 to 7%). Those spans cover more than one regimen. Common antibiotic diarrhea usually ends when the drug is stopped. MedlinePlus says to call if nausea, vomiting, diarrhea, stomach pain, or headache is severe or does not go away. No cited source prints a percentage for alcohol plus azithromycin.

NIAAA says mixing alcohol with certain medications can cause nausea and vomiting, headaches, drowsiness, fainting, or loss of coordination. For the infections group that includes Zithromax, it lists fast heartbeat, sudden changes in blood pressure, stomach pain, upset stomach, vomiting, headache, or flushing or redness of the face. Liver damage in that cell sits next to isoniazid and ketoconazole. Diarrhea is on the Zithromax label and is not in that NIAAA cell. NIAAA also says alcohol can intensify sleepy, drowsy, or lightheaded effects. Zithromax postmarketing reports include somnolence, which is not in the most-common highlights list. Alcohol and medicines can interact even when not taken together. No hours-to-wait figure is printed.

Sources: Zithromax (azithromycin) tablets and oral suspension, including the Z-PAK carton; Azithromycin; Harmful interactions: mixing alcohol with medicines

Heart and liver warnings are about the drug

The label reports QT prolongation and torsades de pointes, which can be fatal, including with known QT prolongation, a history of torsades, other QT-prolonging drugs, or proarrhythmic conditions. Elderly patients may be more susceptible. Call for a fast or irregular heartbeat, dizziness, or fainting. The same label cites observational studies with an approximately two-fold increased short-term potential risk of acute cardiovascular death versus other antibacterials, including amoxicillin. Alcohol is not part of that warning.

Severe, sometimes fatal, hepatotoxicity has been reported. Stop azithromycin immediately if hepatitis symptoms occur. Do not take Zithromax after cholestatic jaundice or hepatic dysfunction from earlier azithromycin. MedlinePlus says that history will probably mean you should not take it again. Tell your doctor about liver or kidney disease. NIAAA writes "liver damage" in the infections cell next to isoniazid and ketoconazole, not as a Zithromax line. Older people are at particularly high risk for harmful alcohol-medication interactions. Ask the prescriber or a pharmacist.

Sources: Zithromax (azithromycin) tablets and oral suspension, including the Z-PAK carton; Azithromycin; Harmful interactions: mixing alcohol with medicines

When the sources say to call a doctor

Stop and get emergency help for trouble breathing or swallowing, face or throat swelling, hoarseness, a fast heartbeat, faintness, hives, or fever with swollen lymph nodes. Stop at the first rash and call. Call right away for yellow skin or eyes, dark urine, unusual tiredness, or upper-right stomach pain. MedlinePlus adds unusual bleeding and flu-like symptoms to that stop-and-call list.

Watery or bloody diarrhea can start as late as two or more months after the last dose. Call if myasthenia gravis weakness or breathing worsens. If you vomit within an hour of a dose, call before another dose. Call if symptoms do not improve or get worse, and do not double a missed dose. In overdose, call Poison Control at 1-800-222-1222. If someone has collapsed, had a seizure, has trouble breathing, or cannot be awakened, call 911. Report side effects to FDA MedWatch at 1-800-FDA-1088 or www.fda.gov/medwatch.

• This is not medical advice.
• Confusion, vomiting while barely responsive, slow or irregular breathing, or a person you cannot wake: call 911. That is alcohol poisoning, not a hangover.

Sources: Zithromax (azithromycin) tablets and oral suspension, including the Z-PAK carton; Azithromycin; Understanding the dangers of alcohol overdose

A Z-Pack is not a hangover treatment on these sources

Hangover is not a Zithromax use. MedlinePlus does not describe one. Drinking on a Z-Pack is a question about azithromycin and alcohol, answered above from the label, MedlinePlus, and NIAAA. Stomach symptoms after drinking are on hangover cure myths and Pepto-Bismol for a hangover. Allergy tablets are a different label: can you drink on Zyrtec.

Sources: Zithromax (azithromycin) tablets and oral suspension, including the Z-PAK carton; Azithromycin; Harmful interactions: mixing alcohol with medicines

Where Joyrise fits, and where it does not

Azithromycin directions are not Joyrise directions. Joyrise is not an antibiotic. Joyrise is an Alcohol Metabolizing Aid: a DHM supplement built around dihydromyricetin. The capsule label says to take 3 capsules while consuming alcohol, or before bed. Do not exceed 3 servings (9 capsules) per day. Much of the alcohol-related DHM evidence is preclinical, and Joyrise does not lower BAC, reverse impairment, or make driving safe. Read the full directions and warnings on our Alcohol Metabolizing Aid capsules page before you buy.

Sources: Joyrise capsules: product page and current label; Shen et al., 2012: DHM and alcohol-related signaling