Maybe it’s you, or maybe it’s someone you love here in Nashville. The drinking stopped, and now something is wrong: the shaking, the sweating, a look that says this is more than a bad hangover.
The alcohol withdrawal timeline usually runs like this: symptoms start 6 to 12 hours after the last drink, seizure risk peaks at 24 to 48 hours, delirium tremens at 48 to 72, and most people ease by days four to seven. If someone has been drinking heavily every day for weeks or longer, stopping without medical help can cause seizures and a dangerous condition called delirium tremens. Alcohol withdrawal itself can be fatal, and this is one of the few times when going it alone is genuinely risky.
About 178,000 people a year died from excessive alcohol use in the United States in 2020 and 2021, according to the National Institute on Alcohol Abuse and Alcoholism (NIAAA), counting everything from liver disease to car crashes. Withdrawal is a separate danger, and a faster one: it can turn serious within the first two days.
If you’re not sure how serious this is, our team can talk it through with you in one free phone call and help you find the right level of care. If someone is confused, has a seizure or has a fever, call 911 first.
The Alcohol Withdrawal Timeline, Hour by Hour
Hour by hour, withdrawal climbs through the first three days and then eases, and for most people it stays mild to moderate: according to the StatPearls clinical review of alcohol withdrawal, only about 3 to 5 percent of people in withdrawal progress to delirium tremens. Nobody can promise which group someone falls into.
Withdrawal happens because alcohol slows the brain down. Over months of heavy drinking, the brain compensates: the same StatPearls review explains that it turns up excitatory glutamate signaling and turns down its own calming GABA activity. When the alcohol suddenly stops, those adjustments have nothing to balance them, and the nervous system runs hot. That overactivity drives the shaking and racing heart and, in severe cases, seizures and delirium.
6 to 12 hours: the first signs
Somewhere between six and 12 hours after the last drink, the hands start shaking, and anxiety, sweating, a racing heart, nausea, and sleeplessness set in, according to American Family Physician. It can look like a terrible hangover, and most people can still function.
12 to 24 hours: it climbs
Symptoms get stronger, and some people start seeing, hearing, or feeling things that aren’t there, something doctors call alcoholic hallucinosis. It’s frightening, but it’s different from the dangerous confusion that can come later: the person usually still knows where they are and who they’re with.
24 to 48 hours: when seizures are most likely
Withdrawal seizures are most likely between 24 and 48 hours after the last drink, but they can start much sooner: according to American Family Physician’s review of alcohol withdrawal, they have been reported as early as two hours in. They can come with no warning, and they’re full-body seizures. If you’re with someone and they seize, call 911. Do not wait it out.
A seizure is also a sign that withdrawal is severe, and left untreated, severe withdrawal can progress to delirium tremens. Even if the person seems fine afterward, they need to be seen by a doctor.
48 to 72 hours: the delirium tremens window
According to American Family Physician, delirium tremens, or DTs, usually begins 48 to 72 hours after the last drink and can peak around day five. It’s the most dangerous part of alcohol withdrawal. The person becomes severely confused. They may not know where they are, what day it is, or who you are. Their heart races, their blood pressure spikes, and a fever can set in.
If someone is confused, doesn’t know where they are, has a fever or a racing heart after stopping drinking, call 911.
Untreated, DTs can be fatal. With prompt medical care, most people come through.
Days 4 to 7: easing for most, not over for everyone
For most people with mild or moderate withdrawal, symptoms peak within the first three days, so by days four through seven the shaking is usually easing. But delirium tremens can still peak around day five, so keep paying attention. New confusion, fever, or a racing heart still means 911.
Why Your Timeline Might Look Different
How much someone drinks and for how long matters most. But so does their age, their overall health, whether they also depend on benzodiazepines, and whether they’ve had withdrawal seizures or delirium tremens before, according to StatPearls.
StatPearls describes kindling: each withdrawal episode tends to be more severe than the last, and repeated episodes lower the seizure threshold. “He quit on his own last time and was fine” is an understandable thing to believe, and one of the most dangerous assumptions a family can make.
What Supervised Detox Actually Does About All This
In supervised detox, someone checks on the person regularly and scores their symptoms on a standard scale, so a turn for the worse gets caught early. The American Society of Addiction Medicine (ASAM) national guideline covers alcohol withdrawal management in both outpatient and inpatient settings, depending on how severe and risky someone’s withdrawal is, and American Family Physician notes that severe or complicated withdrawal calls for hospital-level care.
Benzodiazepines, the first-line medication, ease the anxiety and shaking and lower the risk of seizures and delirium tremens. Detox also includes thiamine, a B vitamin that heavy drinking depletes, because severe deficiency can cause lasting brain damage called Wernicke-Korsakoff syndrome. See our guide to medications for alcohol withdrawal.
The Weeks After Withdrawal: The Part Nobody Warns You About
For weeks after the shaking stops, sleep stays broken and nothing feels enjoyable, even though most people expect to feel better by then. The Substance Abuse and Mental Health Services Administration (SAMHSA), in a 2010 advisory, calls this stretch protracted withdrawal and lists anxiety, sleep problems, fatigue, trouble concentrating, and anhedonia, a reduced ability to feel pleasure, among the common symptoms.
When they still feel flat weeks later, people start to believe sobriety isn’t working, and SAMHSA notes that people may go back to drinking just to make these symptoms stop. These symptoms do ease with time, though sleep can take much longer to settle.
What to Ask Before You Choose a Detox Program in Nashville
Ask any detox program, including ours, these five questions:
- Is detox medically supervised, with medication available to lower the risk of seizures and delirium?
- Who is actually watching my loved one, and how often?
- If they’ve been through withdrawal before or have other health conditions, how does the plan change?
- What happens after detox? Detox gets someone stable. It’s not treatment by itself.
- Will you answer my questions without trying to sell me?
What Recovery Unplugged’s Tennessee Detox Program Looks Like
Recovery Unplugged’s alcohol detox in Nashville, at our Brentwood campus, is medically supervised, with medication on hand to lower the risk of seizures and delirium. Because our residential treatment is in Brentwood too, a move into residential can be arranged before detox ends, so you don’t have to go home to wait in between. After that, people can continue in our virtual intensive outpatient program (IOP), which includes a mental health track, as long as they’re physically in Tennessee during sessions.
Families also notice the music: sometimes a song gets someone talking when a direct question hasn’t. Talk it through with our Nashville team.
Frequently Asked Questions
Can I detox from alcohol at home?
It depends on how you’ve been drinking. For people at low risk with mild symptoms, withdrawal can sometimes be managed as an outpatient, but only after a clinician’s assessment. For someone who has been drinking heavily every day, it’s not safe: that pattern carries a real risk of seizures and delirium tremens.
How long does alcohol detox take?
For mild to moderate withdrawal, symptoms peak within three days and ease over the days that follow, but the danger window runs through roughly the first week. Poor sleep, mood swings, and fatigue can last weeks.
What’s the most dangerous part of alcohol withdrawal?
Roughly the first week. Seizures are most likely 24 to 48 hours in but can happen within hours, and delirium tremens usually starts 48 to 72 hours in. Past withdrawal seizures or DTs, or benzodiazepine use, raise the stakes.
What is delirium tremens?
The most severe form of alcohol withdrawal: severe confusion, with heart rate, blood pressure, and temperature climbing, usually starting two to three days after the last drink. It can be fatal without treatment, so these signs mean 911. With proper medical care, most people come through.
Does withdrawal get worse each time you quit?
Often, yes. Repeated withdrawals can lower the seizure threshold and make later ones more severe. A history of past withdrawals is a reason to seek supervision, not a sign you’re safe to go it alone.
What about coming off benzodiazepines or opioids?
Each has a different timeline, different risks, and a different detox plan. For opioids, the Centers for Disease Control and Prevention (CDC) doesn’t recommend detox alone without medication, and buprenorphine can often start without an inpatient stay. See treatment for benzodiazepine dependence or ask our team directly.
If you’re planning to stop drinking, talk to someone first: one call to our Nashville team will tell you whether you need medical supervision.