Can heavy drinking cause depression in someone who never had it?

Yes. The CDC lists depression and anxiety among the mental health conditions that excessive alcohol use can lead to. A 2011 pooled analysis judged the most plausible causal path to run from alcohol use disorder to major depression.

How long after quitting alcohol does mood improve?

In a 1988 study of 191 men in inpatient alcohol treatment, 42% had clinically significant depression at admission and 6% did at week 4. The largest drop came at week 2. Depression that started before the drinking may not follow this pattern and may need its own treatment.

Can one or two drinks affect depression?

The strongest evidence concerns heavy drinking and alcohol use disorder. Even so, a review of sleep studies in healthy volunteers found that alcohol disrupts the second half of the night at all doses. If you take an antidepressant, check its label, because some advise avoiding alcohol entirely.

Is it safe to drink on Wellbutrin?

The FDA label for Wellbutrin XL says alcohol should be minimized or avoided. It cites rare reports of adverse neuropsychiatric events and reduced alcohol tolerance. People who drink heavily should not stop suddenly while taking bupropion, because abrupt alcohol discontinuation raises seizure risk.

Should depression and a drinking problem be treated at the same time?

Yes. NIMH describes integrated care, which combines mental health and substance use treatment in one place. NIAAA tells clinicians they do not need to wait for sobriety to start an antidepressant when there is evidence of need.

Does Drinking Alcohol Make Depression Worse?

The short answer: Yes, for most people it does. A pooled analysis found that alcohol use disorder and major depression each roughly double the risk of the other, and the stronger causal path runs from alcohol to depression. Heavy drinking can also cause depressive symptoms that fade within weeks of stopping. Alcohol disrupts sleep, interacts with antidepressants, and raises suicide risk.

Does alcohol cause depression, or does depression cause drinking?

Both happen, but the evidence leans one way. A 2011 review in the journal Addiction pooled studies published since 1980. Having either alcohol use disorder or major depression doubled the risk of the other. The pooled adjusted odds ratios ranged from 2.00 to 2.09.

The authors concluded that shared causes, such as genes or life stress, do not fully explain the link. They judged the most plausible causal path to be alcohol use disorder raising the risk of depression, rather than the reverse.

The National Institute of Mental Health lists three reasons the two conditions travel together:

Shared risk factors. Stress, trauma, and genetics can contribute to both.
Drinking to cope. Mental disorders can lead people to use substances to manage symptoms.
Brain changes. Substance use can change the brain in ways that raise the risk of other mental disorders.

Drinking to cope is the second path on that list. The pooled data suggest it tends to backfire.

How common is it to have both depression and a drinking problem?

Very common. The National Institute on Alcohol Abuse and Alcoholism (NIAAA) reports that among people with major depressive disorder, 27% to 40% have alcohol use disorder at some point in life. Up to 22% have it in any 12-month period.

Having both is harder than having either one alone. A 2019 review in Alcohol Research found that the combination is linked to greater severity and a worse prognosis for both disorders. NIAAA adds that long-term alcohol exposure on top of depressive symptoms may lead to longer mood episodes, poorer cognitive function, and higher suicide risk.

You do not need a diagnosis of alcohol use disorder for alcohol to matter. The CDC lists depression and anxiety among the mental health conditions linked to excessive alcohol use. The CDC defines excessive use this way:

Binge drinking: four or more drinks for women, or five or more for men, on one occasion.
Heavy drinking: eight or more drinks a week for women, or 15 or more for men.

Anxiety often rides along with both conditions. Our sister site anxiety.md covers that side.

Will depression lift if you stop drinking?

Often it improves, and sometimes quickly. Depression that heavy drinking causes directly is called alcohol-induced (or substance-induced) depression. It tends to fade with abstinence.

The classic evidence is a 1988 study of 191 men in inpatient alcohol treatment. None had a major psychiatric disorder before their drinking began. At admission, 42% had clinically significant depression scores. By week 4 of abstinence, only 6% did. The largest drop came at week 2.

A 1995 follow-up study of 54 men compared the two patterns. Depressive symptoms cleared faster in men whose alcohol dependence came first than in men whose mood disorder came first. It took at least 3 weeks of abstinence to tell the groups apart reliably.

Three cautions apply to these numbers:

Both studies were small, enrolled only men, and took place in inpatient units.
Depression that began before the drinking, or that continues during long sober periods, is less likely to clear with abstinence alone.
Waiting is not always the right call. NIAAA tells clinicians they do not need to wait for sobriety to start an antidepressant when there is evidence of need.

One safety point: if you drink heavily, talk with a clinician before you stop suddenly. The Wellbutrin XL label warns that abruptly stopping alcohol can raise seizure risk.

How does alcohol affect sleep and next-day mood?

Alcohol helps you fall asleep and then breaks up your sleep. A 2013 review of studies in healthy volunteers found the same pattern at all doses. People fell asleep faster and slept more solidly in the first half of the night. Sleep disruption then increased in the second half.

The review also found that alcohol delays the first period of REM sleep at all doses. At moderate and high doses, most studies showed less REM sleep across the whole night.

The problem grows with heavier use. NIAAA reports that 36% to 91% of people with alcohol use disorder have a sleep disorder. Some sleep changes recover only after 30 or more days of abstinence.

Poor sleep and depression feed each other. If you already feel drained, read why depression makes you tired. For sleep-specific help, see insomnia.md.

Can you drink alcohol while taking antidepressants?

FDA labels advise against it, and the reason differs by drug.

Sertraline (Zoloft). The Medication Guide states: "Do not drink alcohol while you take ZOLOFT." The same label notes that in healthy subjects, Zoloft did not increase the mental and motor effects of alcohol. The advice is a precaution. The Zoloft oral solution itself contains 12% alcohol.
Bupropion (Wellbutrin XL). The label says alcohol use "should be minimized or avoided." It cites rare reports of adverse neuropsychiatric events and reduced alcohol tolerance. Bupropion is also contraindicated in people who are abruptly stopping alcohol, because of seizure risk.
MAOIs, duloxetine, and others. NIAAA's medication interaction guide warns that MAOIs can cause a dangerous rise in blood pressure with tyramine in beer and wine. Duloxetine combined with alcohol may raise the risk of liver toxicity.

Across the class, NIAAA says alcohol may increase drowsiness and dizziness. It may also reduce antidepressant response and make people less likely to take their medication as prescribed. That matters if you are still waiting for a drug to work. See how long antidepressants take to work.

Ask your prescriber or pharmacist about your specific drug. Do not skip doses in order to drink.

Does alcohol raise suicide risk in people with depression?

Yes. This is the most serious part of the answer. The CDC lists suicide among the short-term harms of excessive drinking.

A 2017 meta-analysis of seven studies measured the effect of recent drinking. Any acute alcohol use was linked to about 7 times the odds of a suicide attempt (odds ratio 6.97). Low levels of drinking carried an odds ratio of 2.71. High levels carried an odds ratio of 37.18.

These were case-control and case-crossover studies. They show a strong association, and the estimate for heavy drinking has a wide confidence interval.

If you or someone you know is having thoughts of suicide, call or text the 988 Suicide & Crisis Lifeline at 988, or chat at 988lifeline.org. If someone is in immediate danger, call 911.

The bottom line

Alcohol tends to make depression worse. The two conditions double each other's risk, and the stronger causal path runs from heavy drinking to depression. Depression caused by drinking often eases within about 4 weeks of stopping. Alcohol also breaks up sleep, can blunt antidepressant response, and raises the odds of a suicide attempt.

If you have depression, cutting back or stopping is one of the few changes that can help mood, sleep, and treatment at once. If stopping feels hard, tell your clinician. NIMH describes integrated care, which treats both conditions in one place. Our guide to depression treatment options covers the next steps.

Last updated: October 2026. This article is for informational purposes only and does not constitute medical advice. Talk with your healthcare provider before changing how much you drink or how you take any antidepressant.