Fentanyl Addiction Treatment in Los Angeles
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Written By
John Ingham,
Medical & Behavioral Health Content Writer
Medically and Clinically Reviewed per our editorial standards
Key Takeaways
- Fentanyl is a highly potent synthetic opioid associated with significant overdose risk
- Repeated use can lead to tolerance, physical dependence, cravings and opioid use disorder
- Illicit fentanyl may be found in counterfeit pills and other drugs without the person knowing
- Treatment can include detox, residential care, MAT, therapy and dual diagnosis support
- Withdrawal severity depends on frequency of use, amount used, duration and other substances involved
- Fentanyl exposure can complicate the timing and initiation of some medications for opioid use disorder
- Medically supervised detox can help manage withdrawal and transition into continued treatment
Fentanyl addiction can develop quickly, and every return to an unpredictable illicit opioid supply carries a risk of overdose. Recovery requires more than simply getting through withdrawal. Effective fentanyl addiction treatment should address physical dependence, cravings, relapse risk, mental health, behavioral patterns, and the circumstances that contributed to continued opioid use.
Sanctuary Treatment Center in Tarzana, California provides fentanyl addiction treatment for adults who need structured support to stop using opioids and begin building long-term recovery. Depending on a person’s clinical needs, treatment may include medically supervised detox, residential treatment, medication-assisted treatment (MAT), dual diagnosis care, outpatient programming, behavioral therapies, and continuing-care planning.
Our team develops an individualized treatment plan based on each client’s substance use history, physical health, mental health, previous treatment experiences, current withdrawal symptoms, home environment, and recovery goals.
What Is Fentanyl?
Fentanyl is a powerful synthetic opioid. Pharmaceutical fentanyl has legitimate medical uses, including the treatment of severe pain in carefully controlled medical settings.
The fentanyl responsible for much of the current overdose crisis is different. Illegally manufactured fentanyl is produced and distributed outside the regulated pharmaceutical system. It may be sold as fentanyl itself, mixed into heroin or other drugs, or pressed into counterfeit tablets designed to resemble prescription medications.
Illicit fentanyl has also been identified in supplies of substances that people may not expect to contain an opioid, including cocaine and methamphetamine. This means someone does not necessarily have to intend to use fentanyl to be exposed to it.
Fentanyl is estimated to be up to 50 times more potent than heroin and approximately 100 times more potent than morphine. Because extremely small quantities can produce powerful opioid effects, inconsistent concentrations within illicit drugs can make dosing unpredictable.
Learn more about drug addiction treatment in Los Angeles →
Why Is Illicit Fentanyl So Dangerous?
There is no reliable quality control in the illicit drug supply. Two pills or bags that look identical can contain very different substances or concentrations.
Several factors make fentanyl particularly dangerous:
- Extreme potency: Small differences in the amount consumed can substantially change its effects.
- Respiratory depression: Like other opioids, fentanyl can slow breathing to dangerous or fatal levels.
- Unknown concentration: Illicit fentanyl may not be evenly distributed through a powder or counterfeit pill.
- Counterfeit medications: Tablets made to look like oxycodone, hydrocodone, alprazolam, or other medications may contain fentanyl instead.
- Unexpected exposure: Fentanyl may be present in another illicit substance without the person knowing it.
- Polysubstance use: Combining opioids with alcohol, benzodiazepines, or other depressants can further increase overdose risk.
- Reduced tolerance after abstinence: A person who returns to opioid use after detox, incarceration, hospitalization, or another period without opioids may be especially vulnerable to overdose.
Someone may survive fentanyl use repeatedly and still experience a fatal overdose during a later episode. Past tolerance does not guarantee that a person can safely predict the contents or potency of the next substance they use.
Fentanyl and Counterfeit Pills in Los Angeles
The illicit opioid landscape in Los Angeles has changed substantially as fentanyl has become established in the local drug supply.
Los Angeles County has reported meaningful declines in fentanyl-related overdose deaths in recent years, but fentanyl continues to contribute significantly to fatal overdoses throughout the county. Counterfeit pills and drugs containing unexpected fentanyl remain an important public-health concern.
A person may believe they purchased oxycodone, Percocet, Xanax, or another familiar medication when the tablet was actually manufactured illegally and contains fentanyl.
This is one reason treatment should not be delayed simply because someone believes they can control how much they use. With an unregulated drug supply, the person may not know what they are taking in the first place.
Signs of Fentanyl Addiction
Fentanyl addiction is typically diagnosed as an opioid use disorder rather than according to the specific opioid a person uses.
Possible signs include:
- Needing larger or more frequent amounts of opioids
- Experiencing withdrawal when opioid use stops
- Intense cravings
- Repeated unsuccessful attempts to stop or reduce use
- Spending significant time obtaining, using, or recovering from opioids
- Continuing to use despite physical or mental health consequences
- Using despite problems with family, work, finances, or relationships
- Losing interest in activities that were previously important
- Using in dangerous situations
- Repeated overdose or close calls
- Returning to fentanyl despite knowing the overdose risk
- Using opioids primarily to avoid withdrawal
- Needing opioids shortly after waking
- Mixing fentanyl with other substances
- Becoming increasingly isolated or secretive about drug use
A person does not need to reach a particular level of severity before seeking treatment.
For someone repeatedly using fentanyl, waiting for addiction to become “bad enough” can be especially dangerous because overdose can occur before the person ever reaches the point at which they planned to get help.
What Does Fentanyl Withdrawal Feel Like?
Physical dependence can develop when the body adapts to repeated opioid exposure. When fentanyl use suddenly stops or decreases, withdrawal symptoms can emerge.
Fentanyl withdrawal may involve:
- Anxiety or agitation
- Strong opioid cravings
- Muscle and joint aches
- Sweating
- Chills
- Runny nose
- Watery eyes
- Frequent yawning
- Restlessness
- Insomnia
- Abdominal cramping
- Nausea
- Vomiting
- Diarrhea
- Dilated pupils
- Increased heart rate
- Irritability
- Depression or emotional distress
Withdrawal experiences vary significantly according to how much fentanyl was used, how frequently it was used, how long dependence has been present, other substances being used, medical conditions, and individual physiology.
Fentanyl can also complicate the transition onto certain medications for opioid use disorder. For that reason, medication timing should be determined by qualified medical professionals rather than based solely on a predetermined number of hours since someone last used.
Fentanyl Detox in Los Angeles
For many people with physical dependence on fentanyl, the first stage of treatment is medically supervised opioid detoxification and stabilization.
At Sanctuary Treatment Center, the detox process begins with an assessment of the client’s substance use, medical history, mental health, medications, withdrawal symptoms, and other factors that may influence treatment.
The goals of fentanyl detox can include:
- Safely discontinuing illicit opioid use
- Monitoring withdrawal symptoms
- Reducing physical discomfort
- Managing dehydration or other medical concerns
- Addressing cravings
- Evaluating the use of appropriate medications
- Identifying co-occurring substance use
- Stabilizing sleep and nutrition
- Assessing mental health needs
- Developing a plan for continued treatment
Detox is an important beginning, but detoxification by itself is not comprehensive treatment for opioid use disorder.
Once the immediate withdrawal period is addressed, continued treatment can focus on why opioid use continued, how to manage cravings and triggers, and how to reduce the likelihood of returning to fentanyl.
Learn about medical detox in Los Angeles →
Medication-Assisted Treatment for Fentanyl Addiction
Medication-assisted treatment can be an important component of care for opioid use disorder.
Rather than expecting someone to manage intense opioid cravings through willpower alone, medications can be incorporated into a broader treatment plan that also includes therapy, recovery support, relapse prevention, and behavioral healthcare.
Depending on clinical appropriateness, medications used in the treatment of opioid use disorder may include:
Buprenorphine
Buprenorphine can reduce opioid withdrawal symptoms and cravings while helping stabilize someone who has developed opioid dependence.
Some formulations combine buprenorphine with naloxone. Longer-acting formulations may also be considered according to the individual’s treatment plan and medical needs.
Because recent fentanyl exposure can affect how clinicians approach the initiation of buprenorphine, treatment should be individualized rather than attempting to start medication without appropriate medical guidance.
Methadone
Methadone is a long-acting medication used to treat opioid use disorder. It can reduce withdrawal and cravings and may be particularly valuable for some people with severe or persistent opioid dependence.
Methadone for opioid use disorder is provided through federally certified opioid treatment programs. When methadone is the appropriate treatment, care may involve coordination with an authorized provider.
Naltrexone
Naltrexone blocks opioid receptors rather than activating them. It may be appropriate for certain people who want medication-supported relapse prevention after completing opioid withdrawal.
A person must be adequately withdrawn from opioids before beginning naltrexone because starting it while opioids remain in the body can precipitate severe withdrawal.
Medication selection is not one-size-fits-all. A clinician should consider the client’s history, previous responses to medication, fentanyl exposure, withdrawal status, medical needs, and treatment preferences.
Residential Fentanyl Rehab in Los Angeles
After stabilization, some clients benefit from residential treatment.
Residential care removes the person from immediate access to fentanyl while providing a structured environment where recovery can become the primary focus.
Fentanyl addiction treatment in a residential setting may address:
- Opioid cravings and relapse triggers
- Emotional regulation
- Trauma
- Anxiety and depression
- Behavioral patterns associated with substance use
- Relationships and family dynamics
- Sleep and daily routines
- Stress management
- Recovery-support development
- Relapse prevention
- Life skills
- Continuing-care planning
The purpose of residential treatment is not simply to create more time between the client and their last use of fentanyl. It is to use that time to develop the psychological, behavioral, and social foundation needed to maintain recovery after leaving a controlled environment.
Explore inpatient and residential treatment →
Therapy for Fentanyl Addiction
Medication can address important biological components of opioid use disorder, but lasting recovery often requires behavioral and psychological work as well.
Sanctuary provides access to a range of therapies that can be incorporated into individualized fentanyl addiction treatment plans.
Cognitive Behavioral Therapy
Cognitive behavioral therapy can help clients recognize connections between thoughts, emotions, triggers, and substance-use behaviors while developing healthier responses.
Dialectical Behavior Therapy
Dialectical behavior therapy can support emotional regulation, distress tolerance, mindfulness, and healthier interpersonal behaviors.
Individual Therapy
Individual therapy provides a private setting to examine the circumstances surrounding opioid use and establish personalized recovery goals.
Group Therapy
Group therapy allows clients to develop communication skills, receive feedback, reduce isolation, and build connections with others working toward recovery.
Family Therapy
Addiction frequently affects the entire family system. Family therapy can help address communication, boundaries, trust, and the ways loved ones can appropriately support recovery.
Trauma Therapy
When trauma and opioid use are interconnected, trauma-informed treatment can help clients address underlying experiences without relying on fentanyl or other substances to suppress painful symptoms.
Treatment plans are individualized. A client does not necessarily participate in every therapy offered at Sanctuary.
Dual Diagnosis Treatment for Fentanyl Addiction
Opioid addiction does not always occur by itself.
Some people began using opioids to cope with emotional pain, trauma, anxiety, depression, or another mental health concern. Others develop significant mental health symptoms as addiction progresses.
Common concerns that may occur alongside fentanyl addiction include:
- Depression
- Anxiety
- Trauma and PTSD
- Grief
- Mood symptoms
- Sleep disturbances
- Emotional dysregulation
- Chronic stress
- Other substance use disorders
If a co-occurring condition is left untreated, those symptoms may continue to function as powerful relapse triggers.
Sanctuary’s dual diagnosis treatment program allows substance use and co-occurring mental health concerns to be addressed within the same overall treatment plan.
Continuing Treatment After Residential Fentanyl Rehab
Recovery does not end when residential treatment ends.
Returning directly from a highly structured setting to everyday life can introduce work stress, family responsibilities, relationships, familiar environments, and access to substances.
Sanctuary’s continuum of care allows appropriate clients to continue receiving support through outpatient programming.
Depending on clinical needs, this may include:
- Partial hospitalization programming
- Intensive outpatient treatment
- Standard outpatient treatment
- Individual and group therapy
- Medication management
- MAT support
- Dual diagnosis care
- Relapse prevention
- Recovery planning
- Aftercare support
Treatment intensity can decrease as a client becomes more stable and develops greater independence.
What Happens if Someone Overdoses on Fentanyl?
A fentanyl overdose is a medical emergency.
Possible signs of opioid overdose include:
- Being unable to wake the person
- Very slow, irregular, or stopped breathing
- Pinpoint pupils
- Limpness
- Pale, gray, or bluish skin, lips, or fingernails
- Choking, snoring, or gurgling sounds
- Slow heartbeat
- Loss of consciousness
Call 911 immediately if an opioid overdose is suspected.
Administer naloxone if it is available and follow the product instructions. Fentanyl overdoses can require additional doses of naloxone. Emergency medical care is still necessary even if the person begins responding.
Stay with the individual until emergency help arrives.
Treatment after a nonfatal overdose is especially important. Surviving one overdose does not mean someone will survive the next.
When Is It Time to Seek Treatment for Fentanyl Use?
You do not need to wait for an overdose, job loss, arrest, hospitalization, or another major consequence.
Consider speaking with an addiction treatment professional if you or someone you love:
- Cannot stop using fentanyl despite wanting to
- Experiences opioid withdrawal
- Needs fentanyl to feel physically normal
- Has overdosed previously
- Has required naloxone
- Regularly uses alone
- Uses counterfeit pills
- Has returned to fentanyl after previous treatment
- Experiences strong cravings
- Combines fentanyl with other substances
- Is afraid of withdrawal
- Has worsening mental health
- Has lost control over when or how much they use
- Wants to stop but does not know how
An assessment can help determine whether detox, residential care, outpatient treatment, MAT, or another level of support is appropriate.
Why Choose Sanctuary Treatment Center for Fentanyl Addiction Treatment?
Sanctuary Treatment Center provides addiction treatment in Tarzana, California, serving individuals throughout Los Angeles and Southern California.
Our approach to fentanyl addiction treatment emphasizes individualized care rather than expecting every client to follow an identical recovery path.
Treatment at Sanctuary can provide access to:
- Medically supervised detox
- Residential addiction treatment
- Medication-assisted treatment
- Partial hospitalization programming
- Intensive outpatient programming
- Standard outpatient care
- Dual diagnosis treatment
- Individualized treatment planning
- Evidence-based behavioral therapies
- Trauma-informed care
- Family support
- Relapse-prevention planning
- Continuing care and aftercare
Our treatment environment is intentionally intimate, allowing clients to receive focused attention while developing relationships with their treatment team and recovery community.
Start Fentanyl Addiction Treatment in Los Angeles
Fentanyl addiction is treatable.
Whether someone has been knowingly using fentanyl, taking counterfeit pills, using heroin that contains fentanyl, or repeatedly returning to opioids despite serious consequences, treatment can provide a safer way forward.
Sanctuary Treatment Center offers a continuum of care designed to address the physical, psychological, and behavioral components of opioid addiction.
Our admissions team can discuss what has been happening, determine whether Sanctuary provides an appropriate level of care, review insurance coverage, and explain the next steps.
Call Sanctuary Treatment Center at (888) 584-4314 to speak confidentially with admissions.
Frequently Asked Questions About Fentanyl Addiction Treatment
Is fentanyl stronger than heroin?
Yes. Fentanyl is a highly potent synthetic opioid. Illicit fentanyl can produce powerful opioid effects at very small amounts, which is one reason unexpected exposure can result in overdose.
Can you become addicted to fentanyl?
Yes. Repeated fentanyl use can produce physical dependence and opioid use disorder. Signs may include cravings, withdrawal, increasing tolerance, inability to control use, and continued opioid use despite serious consequences.
Does fentanyl withdrawal require detox?
Not every person requires the same level of withdrawal management, but people who have developed substantial fentanyl dependence may benefit from medically supervised detox. A clinical assessment can determine the safest starting point.
How long does fentanyl withdrawal last?
There is no single withdrawal timeline that applies to everyone. Duration and severity can vary according to frequency of use, amount used, duration of dependence, other substances, physical health, and individual metabolism.
Can medication be used to treat fentanyl addiction?
Yes. Medications used to treat opioid use disorder include buprenorphine, methadone, and naltrexone. The appropriate medication and timing depend on an individual’s clinical circumstances. Medication is typically most effective when incorporated into comprehensive addiction treatment.
Can Sanctuary treat fentanyl addiction and mental health disorders together?
Yes. Sanctuary Treatment Center provides dual diagnosis care for clients whose substance use occurs alongside conditions or symptoms such as depression, anxiety, and trauma.
Does Sanctuary offer fentanyl detox in Los Angeles?
Sanctuary Treatment Center provides medically supervised detox in Los Angeles for individuals who require withdrawal management before continuing into another level of addiction treatment. An assessment determines whether detox is appropriate for each client.
What happens after fentanyl detox?
Depending on the individual’s needs, treatment may continue through residential care, MAT, PHP, IOP, outpatient treatment, therapy, and aftercare. Detox addresses the immediate withdrawal period; continued treatment addresses the broader opioid use disorder.
Does insurance cover fentanyl rehab?
Many health insurance plans include benefits for substance use disorder treatment, although coverage, deductibles, authorization requirements, and approved levels of care vary by policy. Sanctuary’s admissions team can verify benefits and explain available coverage before admission.
How do I help someone who is addicted to fentanyl?
Approach the person with concern rather than judgment and encourage them to speak with an addiction treatment professional. Because fentanyl carries a significant overdose risk, families should also know how to recognize an opioid overdose and have naloxone available when possible. If an overdose is suspected, call 911 immediately.
Sources
- National Institute on Drug Abuse. (2025, June 6). Fentanyl. National Institutes of Health. https://nida.nih.gov/research-topics/fentanyl
- Centers for Disease Control and Prevention. (n.d.). Fentanyl. https://www.cdc.gov/overdose-prevention/about/fentanyl.html
- Centers for Disease Control and Prevention. (2025, June 11). Lifesaving naloxone. https://www.cdc.gov/stop-overdose/caring/naloxone.html
- Substance Abuse and Mental Health Services Administration. (2025, August 25). Treatment options for substance use disorder. https://www.samhsa.gov/substance-use/treatment/options
- Los Angeles County Department of Public Health. (2025, June 25). Los Angeles County reports 22% decline in drug-related overdose deaths, including 37% decrease in fentanyl-related deaths [Press release]. https://publichealth.lacounty.gov/phcommon/public/media/mediapubhpdetail.cfm?prid=5069