Percocet Withdrawal: Timeline, Symptoms, and the Acetaminophen Risk

What is Percocet withdrawal?

Percocet is two drugs in one tablet: oxycodone, an opioid, and 325 mg of acetaminophen, the drug in Tylenol. The withdrawal comes from the oxycodone. The Percocet label describes it as opioid withdrawal in a person who is physically dependent, and it lists the same symptoms as any other short-acting opioid.

The second drug is the part that gets missed. A person who takes more Percocet than prescribed is also taking more acetaminophen, and that risk does not show up as withdrawal at all. It shows up days later, in the liver.

If the question is how Percocet compares with oxycodone, OxyContin, Norco, or Vicodin, our oxycodone vs OxyContin vs Percocet guide covers the brands side by side. This page covers what happens when the Percocet stops.

Percocet withdrawal timeline

Oxycodone is a short-acting opioid, so Percocet follows the short-acting clock in SAMHSA’s TIP 63, the federal treatment manual for opioid use disorder.

Treat that as a general clock. Dose, how long someone has been taking it, other drugs, and health all move it. It also assumes the pills were real Percocet.

How long does Percocet withdrawal last?

About 7 to 10 days for the acute physical part, per TIP 63. The end of the physical symptoms is not the end of the risk. Tolerance falls within days, so a return to a former dose can be fatal. The lofexidine (Lucemyra) label warns that people who complete opioid discontinuation are likely to have reduced tolerance and are at increased risk of fatal overdose if they use again.

Percocet withdrawal symptoms

The Percocet label lists the common ones as restlessness, watery eyes, runny nose, yawning, sweating, chills, muscle aches, and wide pupils. Others may develop: irritability, anxiety, backache, joint pain, weakness, stomach cramps, insomnia, nausea, loss of appetite, vomiting, diarrhea, and a faster pulse, breathing rate, or blood pressure.

MedlinePlus calls opioid withdrawal very uncomfortable but not life threatening. Its real medical risks are dehydration and mineral imbalances from vomiting and diarrhea, and breathing vomit into the lungs. Someone who cannot keep fluids down needs medical care the same day, and vomiting that will not stop is a reason to call 911.

Can you get withdrawal from a short Percocet prescription?

That depends on how long it was taken. The label says physical dependence may not occur to a clinically significant degree until after several days to weeks of continued use. A few days of tablets after a procedure is one situation. Daily use for weeks is another, and it is the one the label’s tapering warnings are written for.

The acetaminophen problem

The label sets a ceiling of 4,000 mg of acetaminophen a day. Each Percocet tablet holds 325 mg, so twelve tablets come to 3,900 mg and a thirteenth crosses 4,000 mg before counting any Tylenol or cold medicine. Twelve is not a safe daily number for every strength. Because of the oxycodone, the label’s daily maximum is 12 tablets for the 2.5 mg and 5 mg strengths, 8 for 7.5 mg, and 6 for 10 mg.

That math matters most when Percocet is being misused, because tolerance pushes the opioid dose up and the acetaminophen comes along whether anyone wants it or not. According to the label, acetaminophen has been associated with acute liver failure, at times resulting in liver transplant and death. Most cases involve more than 4,000 mg a day, often from more than one acetaminophen product, and the risk is higher with liver disease and with drinking alcohol while taking acetaminophen.

Why the liver damage is easy to miss

The early signs the label lists for acetaminophen overdose are nausea, vomiting, sweating, and a general unwell feeling. In someone coming off opioids, that is easy to mistake for another day of withdrawal. MedlinePlus says overdose symptoms may not start until 12 or more hours after the acetaminophen was swallowed, and the label says clinical and lab signs of liver damage may not appear until 48 to 72 hours after the overdose.

Waiting for proof is the mistake, because timing decides the outcome. MedlinePlus says the chance of recovery is very good with treatment within 8 hours, and that without rapid treatment a very large overdose can lead to liver failure and death in a few days. There is an antidote, N-acetylcysteine, and it works best early. That is why the label tells patients to get medical attention right away after more than 4,000 mg in a day, even if they feel well. Poison Help at 1-800-222-1222 reaches the local poison center from anywhere in the United States, at any hour.

Tylenol during opioid withdrawal

Muscle aches and joint pain are part of opioid withdrawal, and the first thing many people reach for is Tylenol or a cold medicine. Tylenol is acetaminophen, and many cold and flu medicines contain it too. If any Percocet was taken the same day, it counts toward the same total. The label tells patients to look for “acetaminophen” or “APAP” on package labels and not to use more than one product that contains it. Do not treat 4,000 mg as a target. MedlinePlus advises adults not to take more than 3,000 mg a day of single-ingredient acetaminophen, and less at 65 or older, and the label says the liver risk is higher with liver disease and with drinking. Ask a pharmacist before adding anything for withdrawal pain.

How to stop taking Percocet

How someone should stop depends on where the pills come from.

If Percocet is prescribed to you

Do not stop suddenly on your own. The label warns that rapid tapering in a person who is physically dependent may lead to serious withdrawal symptoms, uncontrolled pain, and suicide, and it tells prescribers to taper gradually with a plan the patient agrees to. The taper belongs to the prescriber. If withdrawal symptoms show up during a taper, the label says the taper may need to pause.

If the pills do not come from a pharmacy

Then nobody knows what was in them. The DEA reports that fentanyl is increasingly pressed into pills made to look like legitimate prescription opioids, and that these counterfeits often contain lethal doses of fentanyl with none of the promised drug. Its One Pill Can Kill page tells people never to trust their own eyes to judge whether a pill is real.

That changes withdrawal in two ways. Fentanyl can make the timeline above run longer and less predictably; our fentanyl withdrawal guide explains why. And a first dose of buprenorphine taken too soon after fentanyl can cause sudden, severe withdrawal. Tell any program or prescriber that the pills were not from a pharmacy, so they can plan the start around it.

What helps during Percocet withdrawal

Buprenorphine and methadone both treat withdrawal and the opioid use disorder underneath it. Buprenorphine has to start at the right point in withdrawal; our guide to precipitated withdrawal explains why. TIP 63 says either can also be used for a supervised withdrawal over days to weeks, though its expert panel does not recommend short-term withdrawal alone, because of high rates of return to opioid use.

For someone who does not start either one, lofexidine (Lucemyra) is FDA-approved to ease opioid withdrawal symptoms; its label warns about low blood pressure and slow heart rate and says it is not a treatment for opioid use disorder. Clonidine is a related drug; see clonidine vs Klonopin. Fluids and medicines for vomiting, diarrhea, cramps, and sleep fill in the rest, chosen by a clinician who knows how much acetaminophen is already on board.

Pooled cohort studies in the BMJ (Sordo, 2017) and JAMA Psychiatry (Santo, 2021) found all-cause death rates about half as high or lower during time on methadone or buprenorphine than during time off them. The Sordo review also found sharply higher death rates in the weeks right after people leave opioid agonist treatment. Keep naloxone in the house for those weeks; our naloxone guide for families covers how to get it in New Jersey.

Our opioid detox guide covers where to go in New Jersey, which programs are licensed for it, and who pays.

In New Jersey

Under New Jersey law P.L.2017, c.28, fully insured New Jersey plans and the State Health Benefits and School Employees’ plans cannot require prior authorization for the first 180 days per plan year of in-network treatment your own physician, psychologist or psychiatrist finds medically necessary, or, during those same 180 days, for outpatient prescription drugs that treat substance use disorder, such as buprenorphine and naltrexone, when that clinician finds them medically necessary. Self-funded employer plans, Medicare and Medicaid are not covered by that rule, so verify with the plan.

NJ FamilyCare covers buprenorphine, methadone, and naltrexone. Residential detox is authorized through the IME for most members, and residential care and opioid treatment programs are scheduled to move into the NJ FamilyCare health plans in January 2027.

For help independent of us, the state’s IME Addictions Access Center at 1-844-276-2777 screens NJ FamilyCare and uninsured residents and refers them to treatment, and ReachNJ, the state treatment line, is at 1-844-732-2465. Periscope Behavioral Health, which publishes this site, is opening a medical detox in Hammonton, Atlantic County, expected Summer 2027. Until it opens, Periscope Behavioral Health at (888) 313-3583, our publisher’s admissions line, can talk through options in New Jersey and Florida, including facilities Periscope operates. What a plan covers depends on the plan and the facility’s network status.

Before the first call: count the tablets

A detox program will ask how much Percocet someone has been taking. For most opioids that number only shapes the withdrawal plan. With Percocet it also tells the team how much acetaminophen went in, so get it as close as possible: tablets a day, for how long, plus any Tylenol or cold medicine on top. That total decides whether the liver needs checking first.

Say, too, whether every pill came from a pharmacy. If some did not, the team should plan for fentanyl, including how and when to start buprenorphine.