Opioid Addiction: Signs, Withdrawal and Treatment

Opioids are the most effective acute pain medications we have and the most dangerous drug class in America. Both things are true, and holding them together is what makes this topic hard to write about honestly. CDC provisional data show opioid involved overdose deaths fell from an estimated 55,296 in 2024 to 44,564 in 2025, the third consecutive annual decline.

Speak with Beachside Behavioral Health

Beachside Behavioral Health is a licensed drug and alcohol treatment provider on the Orange County coast, with our corporate office in Newport Beach. We provide medically supervised detox, residential inpatient treatment, intensive outpatient care, outpatient care and dual diagnosis treatment for co-occurring mental health conditions.

We keep client intake deliberately low so every person gets individual attention. Call (888) 387-5576 for a confidential assessment, or send us a message. An assessment is free and carries no obligation.

What opioids do

Opioids bind to mu opioid receptors in the brain, spinal cord and gut. That produces pain relief, and in many people a wash of warmth and calm that quiets anxiety as much as physical pain. The same receptors sit in the brainstem region that regulates breathing, which is the entire mechanism of opioid overdose: at a high enough dose the drive to breathe simply switches off.

The class covers prescription medications including oxycodone, hydrocodone, morphine and hydromorphone, illicit drugs including heroin, and synthetic opioids including fentanyl, which now dominates the illicit supply.

Tolerance, dependence and addiction are three different things

These get used interchangeably and it causes real harm. Tolerance means needing more for the same effect, and it develops in essentially everyone who takes opioids regularly, including patients taking them exactly as prescribed. Physical dependence means the body has adapted and will produce withdrawal if the drug stops, and it too is expected with sustained use. Neither is addiction.

Opioid use disorder is a behavioral diagnosis: compulsive use, loss of control, continued use despite mounting harm. A cancer patient on long term opioids may be tolerant and dependent while having no disorder at all. Conversely someone can meet the criteria for the disorder without dramatic physical dependence. Confusing these categories leads to patients being abruptly cut off from medication they need, which has its own well documented harms.

Signs of a developing problem

  • Running out of a prescription early, or escalating the dose without discussing it
  • Seeking prescriptions from more than one prescriber
  • Using for mood, sleep, stress or boredom rather than pain
  • Continuing after the injury or procedure has healed
  • Changing the route: crushing, snorting, or injecting
  • Withdrawing from people who might notice
  • Structuring the day around supply and dosing
  • Feeling flu like between doses

Withdrawal: rarely fatal, frequently decisive

Opioid withdrawal is not usually life threatening in a medically healthy adult, which is why it is often waved off. That is a mistake for two reasons. It is severe enough that people will do almost anything to end it, which is when relapse and overdose happen. And in vulnerable people the vomiting and diarrhea can cause dangerous dehydration and electrolyte disturbance.

With short acting opioids symptoms typically begin within eight to twelve hours, peak over one to three days and largely settle in about a week. With methadone and other long acting opioids onset is slower and the course longer. Expect muscle and bone aching, restlessness, agitation, sweating and chills, goosebumps, runny nose and eyes, dilated pupils, yawning, insomnia, nausea, vomiting, diarrhea, abdominal cramping and a level of anxiety and low mood that people describe as the worst part.

Beyond the acute phase, sleep disturbance, low mood, low energy and cravings can persist for weeks or months. Understanding this in advance matters, because people who expect to feel fine after a week and do not often conclude that treatment has failed.

The overdose risk almost nobody is warned about

Tolerance falls fast when opioid use stops, far faster than most people assume. A dose that was routine three weeks ago can be lethal today. This is why overdose deaths cluster in the period immediately after release from jail, discharge from hospital, or completion of a detox that was not followed by treatment.

It is also the single strongest argument against detox as a standalone intervention. Detoxing someone and sending them home without ongoing treatment does not leave them where they started. It leaves them at elevated risk of dying, which is why we treat detox as the opening of a plan rather than an outcome.

Medication is the standard of care

Three medications are approved for opioid use disorder, and the evidence that the first two reduce mortality is about as strong as evidence gets in this field.

  • Buprenorphine. A partial agonist that relieves withdrawal and cravings with a ceiling on respiratory depression, which makes it comparatively safe. Available as a daily film or tablet and as a monthly injection. Since January 2023, any clinician with a standard DEA registration covering Schedule III can prescribe it; the separate waiver requirement that restricted access for two decades was eliminated by the Consolidated Appropriations Act, 2023.
  • Methadone. A full agonist dispensed through licensed opioid treatment programs. Often the better option for people with very high tolerance, which increasingly means people whose use has been fentanyl.
  • Extended release naltrexone. An opioid blocker given monthly. It requires a fully opioid free interval before starting, which is the practical obstacle, and it does nothing for withdrawal.

A persistent and damaging myth holds that these medications substitute one addiction for another. Taking a prescribed, stable, non intoxicating dose that allows someone to work, parent and sleep is not the same as compulsive use of an unregulated supply. The people most likely to repeat this myth are often the ones who most need the medication.

Medication works best inside a real treatment plan: therapy addressing the drivers of use, treatment for co-occurring conditions, naloxone in the home, and structured support during the months when cravings are still loud. Beachside provides that surrounding care and coordinates with medication prescribers.

Frequently asked questions

How long should someone stay on buprenorphine or methadone?

There is no fixed answer, and the pressure to taper quickly is usually social rather than clinical. Outcomes are better with longer treatment, and many people do best staying on medication indefinitely, the way someone stays on medication for any other chronic condition. Stopping should be a planned decision made when life is stable, not a response to stigma.

Can you get addicted to opioids taken as prescribed?

Most people prescribed opioids for a short course do not develop a use disorder. Risk rises with duration, dose and personal or family history of addiction, and with untreated mental health conditions. The honest answer is that it is uncommon but not rare, and it is worth discussing openly with a prescriber rather than either panicking or dismissing it.

What is precipitated withdrawal?

Starting buprenorphine while significant full agonist opioid is still on the receptors can displace it and trigger abrupt, severe withdrawal. It is avoidable with correct timing, and it is much trickier when the opioid involved is fentanyl. This is a strong reason to begin under clinical guidance rather than improvising from advice found online.

Should someone taking opioids as prescribed keep naloxone at home?

Yes, particularly at higher doses, alongside benzodiazepines, or with sleep apnea or lung disease. Naloxone is available over the counter, harmless if given unnecessarily, and useless in a drawer nobody knows about. Tell the people you live with where it is.

Related pages

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Need help now? In an emergency call 911. If you are in crisis or thinking about suicide, call or text 988 to reach the Suicide and Crisis Lifeline (veterans press 1). For free, confidential treatment referrals 24 hours a day, call the SAMHSA National Helpline at 1-800-662-4357. You can also search licensed programs at FindTreatment.gov.

This page provides general health education. It is not medical advice, a diagnosis, or a treatment plan. Never stop or change a prescribed medication without speaking to a clinician first. Withdrawal from alcohol, benzodiazepines and barbiturates can cause seizures and can be fatal without medical supervision.