Fentanyl & Opioid Addiction Treatment in Ontario

Fentanyl is a synthetic opioid roughly 50 to 100 times more potent than morphine, and it now dominates the unregulated drug supply in Ontario. Thousands of Canadians die each year from opioid toxicity, and most of those deaths involve fentanyl. At Sober Living, fentanyl addiction is treated as the serious medical condition it is: with 24/7 medically supervised stabilization, evidence-based opioid agonist treatment, and structured therapy in a residential setting in Etobicoke, Toronto. If you or someone you love is living with fentanyl or other opioid dependence, help is available today.

What is fentanyl addiction?

Fentanyl addiction is a form of opioid use disorder (OUD): a medical condition in which a person keeps using opioids despite serious harm, often while experiencing cravings, tolerance and withdrawal. It is a change in how the brain’s reward and stress systems work, not a moral failing.

Some people develop OUD after being prescribed opioids such as oxycodone or hydromorphone for pain, then move to street drugs when prescriptions end. Others are exposed to fentanyl without knowing it, through counterfeit pills or other drugs. Many have lived through trauma, chronic pain, depression or anxiety, and opioids first offered relief. Understanding that history is part of treatment, and we also treat dependence on other prescription drugs.

Why is the unregulated drug supply so dangerous?

The street supply is unpredictable: the same-looking drug can contain very different amounts of fentanyl, related compounds or other sedatives, so a “usual” dose can suddenly be fatal.

Illicit fentanyl is produced and mixed without quality control. It is often combined with fentanyl analogues such as carfentanil, with newer synthetic opioids (nitazenes), with the veterinary sedative xylazine, or with unapproved benzodiazepine-type drugs. These additives can deepen sedation and make overdose harder to reverse. Fentanyl has also been found in counterfeit pills made to look like prescription medications, and in drugs sold as stimulants. Even very small amounts can stop a person’s breathing, especially for someone with little opioid tolerance.

What is the best treatment for fentanyl addiction in Ontario?

The strongest evidence supports opioid agonist treatment combined with psychosocial support. The CRISM National Guideline for the Clinical Management of Opioid Use Disorder recommends buprenorphine-naloxone as the preferred first-line option when appropriate, with methadone as another first-line option.

These medications work by occupying the brain’s opioid receptors in a steady, controlled way. That relieves withdrawal and cravings without the highs and crashes of street opioids, allowing people to sleep, eat, think clearly and engage in therapy. Research consistently links OAT with fewer overdoses and lower mortality. The guideline specifically advises against withdrawal management alone, because people who detox without ongoing medication lose their tolerance and face a much higher overdose risk if they use again.

Sober Living offers a dedicated Sublocade program for people who want the steadiness of a monthly injection. Our Medical Director, a physician in addiction medicine, reviews every option with you, including continuing an OAT prescription you already have.

How does buprenorphine micro-induction work for fentanyl?

Micro-induction (also called low-dose initiation) starts buprenorphine in very small, gradually increasing doses while the person’s other opioid is continued, then stopped once buprenorphine reaches an effective dose.

Buprenorphine binds to opioid receptors very strongly. With a standard start, a person must wait until they are in moderate withdrawal; otherwise buprenorphine can knock other opioids off the receptors and cause sudden, severe “precipitated” withdrawal. Fentanyl is stored in fatty tissue and released slowly, which makes precipitated withdrawal more likely even after waiting. A micro-induction, typically over several days, avoids the need to go through withdrawal first and has made starting buprenorphine much more tolerable for people who use fentanyl. It requires close medical monitoring, which a residential setting provides.

What happens during opioid withdrawal and stabilization?

Opioid withdrawal is intensely uncomfortable but, unlike alcohol or benzodiazepine withdrawal, it is rarely life-threatening on its own; the main dangers are dehydration and a return to use at reduced tolerance.

At Sober Living, our medical detox team monitors withdrawal around the clock using a standardized scale such as the Clinical Opiate Withdrawal Scale (COWS), manages symptoms with medication, fluids and nutrition, and begins buprenorphine or another OAT at the right time. Most people feel substantially more stable within the first week, although sleep, energy and mood can take longer to settle.

Structured therapy: residential opioid addiction treatment in Toronto

Medication stabilizes the body; therapy helps rebuild a life. Once you are stable, your days include individual counselling, group therapy and skills-based work designed around your goals.

We use cognitive behaviour therapy and dialectical behaviour therapy to manage cravings, distress and the situations that lead to use. Many people who use opioids were exposed to traumatic experiences, and our trauma-informed clinicians take the time to address these at a pace that feels safe, using approaches such as EMDR when appropriate. Where depression, anxiety or PTSD are part of the picture, our concurrent disorders program treats both conditions together. Mindfulness, fitness, nutritional counselling and mutual-support meetings round out the program, which typically runs 30, 45, 60 or 90 days.

How to recognize and respond to an opioid overdose

An opioid overdose is a medical emergency: call 911, give naloxone, and support the person’s breathing until help arrives.

Signs include being unable to wake the person or get a response, slow, shallow or stopped breathing, gurgling or snoring sounds, blue or grey lips and fingertips, very small pupils, and cold, clammy skin. Follow these steps:

1. Shout their name and rub your knuckles firmly on their breastbone.
2. Call 911.
3. Give naloxone (nasal spray or injection) and follow the kit’s instructions; a second dose may be needed after 2 to 3 minutes.
4. Give rescue breaths or chest compressions if you are trained, or follow the 911 dispatcher’s instructions.
5. If they are breathing, place them in the recovery position and stay with them, because naloxone can wear off before the opioid does.

Naloxone does not reverse sedatives such as xylazine or benzodiazepines, but it should still be given because an opioid is almost always involved. Free naloxone kits and training are available at participating Ontario pharmacies without a prescription. The federal Good Samaritan Drug Overdose Act protects people who call 911 or stay at the scene from charges for simple drug possession, and for breaching certain conditions related to simple possession. Never use alone, and keep naloxone where family members can find it.

Family support and aftercare

Families play a powerful role in opioid recovery, and they need support too. Our family program explains OAT (which is treatment, not “replacing one drug with another”), teaches overdose response, and helps rebuild trust. Before discharge we create an aftercare plan that includes continuity of your OAT prescription with a community prescriber, counselling, relapse-prevention strategies, a naloxone kit for the household, and alumni check-ins. Learn more about aftercare and ongoing support.

Admission and insurance

Getting started begins with a free, confidential assessment by phone. We work with most major Canadian and international private insurers and can help verify your benefits; information is protected under Ontario’s PHIPA. Our centre at 3 Warrendale Court in Etobicoke is close to Highways 427, 401 and 407, and we can help with travel from across Ontario and Canada. See our intake process for details. For publicly funded services, ConnexOntario is available at 1-866-531-2600.

Frequently asked questions

This page is general health information and does not replace advice from your own doctor or care team. If you are in immediate danger or think someone has overdosed, call 911.

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Frequently Asked Questions