Opioid & Opiate Detox Guide

Opioids are drugs that bind to opioid receptors in the brain and body, reducing pain signals and producing relaxation and euphoria. The terms "opioid" and "opiate" are often used interchangeably. Strictly speaking, opiates are natural compounds from the poppy plant, while opioids include both natural and synthetic versions.

Common opioids include:

• Heroin: an illegal opioid that is injected, smoked, or snorted
• Fentanyl: a synthetic opioid about 50 times stronger than heroin and 100 times stronger than morphine, now common in the street drug supply
• Oxycodone (OxyContin, Percocet): a widely prescribed painkiller
• Hydrocodone (Vicodin, Norco): a widely prescribed painkiller, often combined with acetaminophen
• Codeine: a milder opioid found in some prescription cough and pain medicines
• Morphine: a natural opiate used mainly in hospitals for severe pain

Physical dependence can develop within a few weeks of regular use. The brain adapts to the drug and comes to rely on it to function normally. When the drug stops, the brain and body react, and that reaction is withdrawal. How severe it is depends on which opioid was used, how much, for how long, and the person's own biology. NIDA's opioid research overview explains how opioids affect the brain and body. For the fundamentals of detox across all substances, see the main detox guide.

Opioid withdrawal is intensely uncomfortable but rarely life-threatening in otherwise healthy adults. Symptoms usually move through three phases. Not everyone has every symptom, and severity depends on the opioid, the length of use, and individual factors.

Early symptoms (6 to 24 hours)

• Anxiety and restlessness
• Muscle aches and joint pain
• Watery eyes and runny nose
• Heavy sweating
• Frequent yawning
• Insomnia, agitation, and irritability

Peak symptoms (days 1 to 3)

• Nausea, vomiting, and diarrhea
• Abdominal cramps
• Dilated pupils
• Rapid heartbeat and raised blood pressure
• Goosebumps and chills
• Intense cravings and trouble concentrating

Late symptoms (days 4 to 7 and beyond)

• Fatigue and low energy
• Ongoing sleep disruption
• Low mood and mood swings
• Reduced appetite
• Difficulty feeling pleasure
• Persistent cravings

Some people go through post-acute withdrawal syndrome (PAWS), in which anxiety, poor sleep, and cravings continue for weeks or months after the acute phase. The withdrawal symptoms guide covers symptoms across all substances and the warning signs that need emergency care.

There is no single approach that fits everyone. The setting depends on the substance, the level of dependence, other health conditions, and personal circumstances, and it is a decision to make with a physician.

Inpatient medical detox

The person stays in a hospital or detox facility with medical staff available around the clock. Clinicians monitor vital signs, give IV fluids when needed, and use medications to ease specific symptoms. Stays commonly run 5 to 10 days. The detox cost guide covers what inpatient care typically involves financially.

Outpatient withdrawal management

The person lives at home and visits a clinic for evaluation, monitoring, and symptom medication. It suits some people with milder dependence, stable health, and support at home.

Medically supervised taper

A physician lowers the dose gradually over days or weeks. Tapering is mainly used for people dependent on prescribed opioids, since street drugs cannot be dosed reliably.

Anesthesia-assisted rapid detox

Withdrawal is brought on quickly with an opioid blocker while the patient is sedated or under anesthesia. CDC and ASAM guidelines advise against anesthesia-assisted ultrarapid detox because of serious adverse events, including deaths. The rapid detox guide explains how the procedure works and why the medical setting and stabilization afterward matter.

Unassisted withdrawal ("cold turkey")

Stopping abruptly without medical support. Opioid withdrawal is rarely fatal on its own, but this route is the most uncomfortable, dehydration can become dangerous, and returning to use at a previous dose after tolerance has dropped can be fatal. Read the home detox safety guide before considering it.

Medications used during and after withdrawal

• Symptom medications: lofexidine and clonidine for sweating, anxiety, and racing heart, plus medications for nausea, diarrhea, muscle aches, and sleep. These ease withdrawal without adding opioid dependence.
• Opioid agonist medications: methadone and buprenorphine (Suboxone) activate opioid receptors. They are used for maintenance and sometimes for tapering, and they keep physical dependence in place while they are taken.
• Opioid antagonist medication: naltrexone (Vivitrol) blocks opioid effects and does not create dependence. A clinician must confirm an adequate opioid-free interval before naltrexone is started. SAMHSA advises at least 7 days after short-acting opioids and 10 to 14 days after long-acting opioids; the interval must be individualized.

SAMHSA's medications overview describes each one in more detail.

Detox ends physical dependence. It does not by itself address the psychological, behavioral, and social side of opioid use, and the weeks after detox are when the risk of returning to use is highest. Addiction develops over time, and recovery takes time for the body and brain to adapt, usually with support from a team of health professionals.

What follows detox varies by person and may include residential or outpatient programs, individual therapy, peer support groups such as NA or SMART Recovery, treatment for co-occurring conditions, and ongoing medical care. Some people take naltrexone after detox; others are prescribed agonist maintenance. Which combination fits is an individual decision to make with a physician. For information on care options by state, see OpioidTreatmentFinder.com, and for drug-specific education, Opiates.org.