Sublocade and Suboxone are both buprenorphine-based medications used to treat opioid use disorder. They can reduce cravings, help prevent withdrawal, and support long-term recovery from opioids like fentanyl, heroin, oxycodone, and hydrocodone. The main difference is how they are taken. Suboxone is usually taken daily as a film or tablet that dissolves under the tongue or inside the cheek. Sublocade is a monthly extended-release injection given under the skin by a healthcare provider.
For many people, the question is not whether Sublocade or Suboxone is “better.” The better question is which medication fits the person’s recovery needs, risk level, lifestyle, treatment history, and ability to stay consistent.
Suboxone may be a better fit for someone who needs flexible daily dosing, is starting buprenorphine treatment, or wants a medication that can be adjusted more easily. Sublocade may be a better fit for someone who is already stable on buprenorphine and wants monthly coverage without having to take medication every day.
Both medications can be helpful, but both need medical supervision.
Sublocade vs. Suboxone at a Glance
| Category | Sublocade | Suboxone |
|---|---|---|
| Active medication | Buprenorphine | Buprenorphine and naloxone |
| Form | Monthly extended-release injection | Daily film or tablet |
| How it is taken | Injected under the skin by a provider | Dissolved under the tongue or inside the cheek |
| Dosing schedule | Once monthly | Usually once daily |
| Used for | Opioid use disorder maintenance treatment | Opioid use disorder induction and maintenance treatment |
| Best fit | People already stable on buprenorphine who want long-acting coverage | People starting treatment or needing flexible dose adjustments |
| Misuse risk | Lower because it is provider-administered | Higher than Sublocade because doses are kept at home |
| Withdrawal timing | Often delayed because medication leaves slowly | Usually starts sooner after stopping |
| Drug test result | May show as buprenorphine | May show as buprenorphine |
| Main advantage | No daily dosing | Easier to start and adjust |
| Main drawback | Less flexible once injected | Requires daily adherence |
What Is Suboxone?
Suboxone is a medication that contains buprenorphine and naloxone. Buprenorphine is a partial opioid agonist, which means it attaches to opioid receptors in the brain but activates them less strongly than full opioids like fentanyl, heroin, or oxycodone. This can reduce withdrawal symptoms and cravings without producing the same high-risk opioid effect.
Naloxone is added to help discourage misuse. When Suboxone is taken as prescribed under the tongue or inside the cheek, naloxone has limited effect because it is poorly absorbed that way. If someone tries to inject Suboxone, naloxone may trigger withdrawal symptoms.
Suboxone is commonly used during both the early stage of treatment and long-term maintenance. It can be started after a person enters enough opioid withdrawal to reduce the risk of precipitated withdrawal. A provider can then adjust the dose based on symptoms, cravings, side effects, and treatment goals.
What Is Sublocade?
Sublocade is an extended-release buprenorphine injection. It does not contain naloxone. It is given once per month by a healthcare provider as an injection under the skin of the abdomen. After injection, the medication forms a small depot under the skin that slowly releases buprenorphine over time.
Sublocade is generally used after someone has already started and tolerated a transmucosal buprenorphine product, such as Suboxone or another buprenorphine medication. That matters because a provider needs to make sure the person can tolerate buprenorphine before switching to a long-acting injection.
The major advantage is consistency. Once Sublocade is given, the medication releases continuously. The person does not have to remember a daily dose, carry medication, visit a pharmacy as often, or worry as much about missed doses.
How Sublocade and Suboxone Work
Both medications work through buprenorphine. Buprenorphine attaches strongly to opioid receptors and can reduce the impact of other opioids. It also helps prevent withdrawal and reduce cravings. Because buprenorphine is a partial agonist, it has a ceiling effect on opioid activity. That does not mean it has no overdose risk, especially when mixed with alcohol, benzodiazepines, or other sedatives, but it does make it different from full opioid agonists.
The difference is delivery.
Suboxone gives buprenorphine in a daily dose. Blood levels rise after the dose and gradually fall before the next dose.
Sublocade gives buprenorphine slowly over a month. Blood levels are steadier because the medication is released from the injection depot over time.
Is Sublocade Better Than Suboxone?
Sublocade is not automatically better than Suboxone. Suboxone is not automatically better than Sublocade. They solve different problems.
Sublocade may be better for someone who:
- Is already stable on buprenorphine
- Forgets daily doses
- Travels often
- Has trouble getting to the pharmacy
- Feels stigma around taking Suboxone every day
- Has medication stolen or misused by others
- Wants less daily focus on medication
- Has a history of taking extra doses during stress
- Wants long-acting relapse protection
Suboxone may be better for someone who:
- Is just starting treatment
- Needs flexible dose adjustments
- Wants a medication that can be changed quickly
- Is not ready for an injection
- Wants a lower barrier to starting care
- Has insurance or cost barriers to Sublocade
- Needs short-term stabilization before deciding on a long-acting option
- Has side effects that need close dose changes
In plain English, Suboxone is usually more flexible. Sublocade is usually more consistent.
Sublocade vs. Suboxone for Withdrawal
Both Sublocade and Suboxone can help prevent opioid withdrawal when used correctly. The difference is what happens when someone stops.
Suboxone withdrawal may start within a few days after the last dose because the medication is taken daily and clears more quickly than Sublocade.
Sublocade withdrawal may be delayed for weeks or months because the medication slowly leaves the body. Some people experience little withdrawal after stopping Sublocade. Others notice symptoms gradually as buprenorphine levels decline.
| Withdrawal Question | Sublocade | Suboxone |
|---|---|---|
| Helps prevent opioid withdrawal? | Yes | Yes |
| Withdrawal after stopping | Often delayed and gradual | Usually sooner and more noticeable |
| Can symptoms last longer? | Possible because levels decline slowly | Possible, especially after long-term use |
| Easier to taper? | May naturally taper down slowly after last shot | Can be tapered more directly by lowering dose |
| Main concern | Delayed cravings or relapse risk months later | Stopping too quickly or tapering without support |
Neither medication should be stopped suddenly without medical guidance. The biggest danger after stopping either medication is not just withdrawal. It is relapse after opioid tolerance has dropped, which can increase overdose risk.
Sublocade vs. Suboxone Side Effects
Sublocade and Suboxone share some side effects because both contain buprenorphine. They also have side effects that are specific to their form.
| Side Effect Type | Sublocade | Suboxone |
|---|---|---|
| Constipation | Possible | Possible |
| Nausea | Possible | Possible |
| Headache | Possible | Possible |
| Sleep problems | Possible | Possible |
| Sweating | Possible | Possible |
| Fatigue | Possible | Possible |
| Mouth irritation | Not typical | Possible because it dissolves in the mouth |
| Dental concerns | Not typical | Possible with transmucosal buprenorphine products |
| Injection site reaction | Possible | Not applicable |
| Dose adjustment issues | Harder to adjust quickly | Easier to adjust |
| Sedation risk with alcohol or benzos | Yes | Yes |
Suboxone can cause mouth irritation, numbness, burning, or dental concerns in some people because it is dissolved in the mouth. Sublocade can cause injection-site pain, itching, redness, swelling, or a lump under the skin.
Both medications can be dangerous when mixed with alcohol, benzodiazepines, sleep medications, or other sedatives.
Sublocade vs. Suboxone Cost
Cost depends on insurance, pharmacy benefits, medical benefits, deductibles, prior authorization, copays, provider fees, and whether a generic is available.
Suboxone often has lower upfront cost because generic buprenorphine/naloxone films and tablets are available. Sublocade may be more expensive because it is a brand-name injectable medication administered in a medical setting. However, some people may find Sublocade affordable if insurance covers it well.
| Cost Factor | Sublocade | Suboxone |
|---|---|---|
| Generic available? | No common generic equivalent | Yes, generic buprenorphine/naloxone is available |
| Billing type | Often medical benefit or specialty pharmacy | Often pharmacy benefit |
| Office visit needed? | Yes, for injection | Usually less often after stabilization |
| Upfront cost | Often higher | Often lower |
| Insurance authorization | Often required | May be required but often easier |
| Hidden cost consideration | Provider visit and injection logistics | Daily pharmacy access and refill consistency |
The cheapest option is not always the best clinical option. The right medication is the one a person can access, tolerate, and stay consistent with.
Sublocade vs. Suboxone Drug Testing
Both Sublocade and Suboxone can show up as buprenorphine on a drug test if the test includes buprenorphine. Many standard drug panels do not automatically test for buprenorphine, but expanded panels often can.
A positive buprenorphine result is expected if someone is prescribed either medication. It should not be treated the same as testing positive for fentanyl, heroin, oxycodone, or other non-prescribed opioids.
| Drug Testing Question | Sublocade | Suboxone |
|---|---|---|
| Can it show up as buprenorphine? | Yes | Yes |
| Does it show as fentanyl or heroin? | No, not unless those substances are also present | No, not unless those substances are also present |
| How long can it be detectable? | Months, sometimes longer after repeated injections | Often days to weeks, depending on use and test type |
| Should prescription be disclosed? | Yes, when appropriate | Yes, when appropriate |
Sublocade may stay detectable longer because it is an extended-release injection.
Switching From Suboxone to Sublocade
Many people switch from Suboxone to Sublocade after they are stable on buprenorphine. This can be helpful when daily dosing becomes stressful, inconsistent, or distracting.
A provider may consider switching someone to Sublocade if they:
- Are stable on a daily buprenorphine dose
- Tolerate buprenorphine well
- Still have cravings or relapse risk
- Struggle with missed doses
- Want less daily medication management
- Have trouble safely storing Suboxone
- Prefer monthly provider-administered treatment
The switch should always be managed by a medical provider. Sublocade is long-acting, so once it is given, the dose cannot be easily removed or adjusted.
Switching From Sublocade Back to Suboxone
Some people switch back from Sublocade to Suboxone. This may happen because of cost, insurance changes, side effects, access issues, pregnancy planning, provider preference, or a need for more flexible dosing.
Switching back can be tricky because Sublocade remains in the body for a long time. A provider may wait until buprenorphine levels decline enough before restarting daily dosing, or they may use a careful plan based on symptoms and timing.
This should not be guessed at home. Taking extra buprenorphine too soon, stopping support too early, or ignoring delayed withdrawal can all create problems.
Sublocade vs. Suboxone for Fentanyl Addiction
Both medications may be used in treatment for opioid use disorder involving fentanyl, but fentanyl can make buprenorphine induction more complicated. Because fentanyl can stay in body tissues and release slowly, some people are at higher risk for precipitated withdrawal if buprenorphine is started too soon.
Suboxone is often used first because the dose can be adjusted carefully during induction. Sublocade may be considered later once the person is already stable on buprenorphine.
For someone using fentanyl, the most important point is not to self-start, self-stop, or self-adjust buprenorphine without medical guidance. Fentanyl withdrawal, buprenorphine induction, and relapse risk all need careful planning.
Pros and Cons of Sublocade
| Pros of Sublocade | Cons of Sublocade |
|---|---|
| Monthly dosing instead of daily dosing | Requires provider-administered injection |
| Steady buprenorphine levels | Less flexible once injected |
| Lower risk of missed doses | May be expensive or require prior authorization |
| Lower risk of medication being lost, stolen, or misused | Injection-site reactions are possible |
| Less daily focus on medication | Usually requires stability on buprenorphine first |
| May help people who struggle with adherence | Not ideal for someone who needs frequent dose changes |
Pros and Cons of Suboxone
| Pros of Suboxone | Cons of Suboxone |
|---|---|
| Easier to start treatment | Requires daily dosing |
| Dose can be adjusted more easily | Medication must be stored safely |
| Generic options may lower cost | Missed doses can increase symptoms |
| Useful for induction and maintenance | Some people dislike taste or mouth effects |
| Can be taken at home | Higher diversion or misuse concern than Sublocade |
| More flexible during early recovery | Daily dosing can feel like a reminder of addiction |
Which Medication Is Better for Long-Term Recovery?
The best medication is the one that helps the person stay alive, avoid illicit opioids, reduce cravings, remain engaged in treatment, and build stability.
For one person, that may be Suboxone because it is flexible, affordable, and easy to adjust. For another person, it may be Sublocade because it removes the daily burden of medication and provides steady coverage.
Medication is not a failure. It is treatment. Opioid use disorder is a medical condition, and buprenorphine-based medications are evidence-based tools that can help people stabilize.
Common Myths About Sublocade and Suboxone
Myth: Sublocade and Suboxone are just replacing one addiction with another.
Taking medication as prescribed for opioid use disorder is not the same as compulsive drug use. Addiction involves loss of control, harm, cravings, and continued use despite consequences. Medication treatment is meant to reduce those patterns and support stability.
Myth: Sublocade is only for people who failed Suboxone.
Sublocade is not a punishment or last resort. It may be chosen because someone is doing well and wants long-acting support.
Myth: Suboxone is weaker because it is taken daily.
Suboxone can be highly effective when taken as prescribed. Daily dosing does not mean it is less legitimate.
Myth: You cannot ever stop once you start.
Some people use buprenorphine short term. Others stay on it long term. The decision should be based on safety, relapse risk, medical history, and recovery stability.
Medication-Assisted Treatment at Sanctuary Treatment Center
Sublocade and Suboxone are both important medications for opioid use disorder. Suboxone is flexible, widely used, and often easier to start. Sublocade is long-acting, steady, and helpful for people who want monthly treatment instead of daily dosing.
The best choice depends on the person. Someone early in recovery may need the flexibility of Suboxone. Someone stable on buprenorphine may benefit from the consistency of Sublocade. Someone at high risk of missed doses, medication loss, or relapse may do better with a monthly injection.
The goal is not to choose the medication that sounds best online. The goal is to choose the treatment plan that gives the person the best chance to stay safe, avoid relapse, and keep moving forward in recovery.
Frequently Asked Questions About Sublocade vs. Suboxone
What is the main difference between Sublocade and Suboxone?
The main difference is how they are taken. Sublocade is a monthly buprenorphine injection given by a provider. Suboxone is a daily buprenorphine/naloxone film or tablet taken by mouth.
Is Sublocade stronger than Suboxone?
Not exactly. Sublocade is longer-acting, not simply “stronger.” It provides steady buprenorphine levels over a month, while Suboxone provides daily dosing that can be adjusted more easily.
Is Sublocade better than Suboxone for withdrawal?
Sublocade may provide steadier coverage and may reduce missed-dose withdrawal. Suboxone is often better for starting treatment because the dose can be adjusted. The best option depends on where someone is in treatment.
Does Sublocade have naloxone like Suboxone?
No. Sublocade contains buprenorphine only. Suboxone contains buprenorphine and naloxone.
Why does Suboxone have naloxone?
Naloxone is included to discourage injection misuse. When Suboxone is taken correctly under the tongue or inside the cheek, naloxone has limited effect.
Can you switch from Suboxone to Sublocade?
Yes, many people switch after they are stable on buprenorphine. The switch should be handled by a medical provider.
Can you switch from Sublocade back to Suboxone?
Yes, but it requires careful timing because Sublocade can remain in the body for months after the last injection.
Which is cheaper, Sublocade or Suboxone?
Suboxone is often cheaper because generic buprenorphine/naloxone is available. Sublocade may cost more but may be covered by insurance depending on the plan.
Does Sublocade or Suboxone show up on a drug test?
Both can show up as buprenorphine if the test includes buprenorphine. They should not show up as fentanyl, heroin, or oxycodone unless those substances are also present.
Which is better for fentanyl addiction?
Suboxone is often used first because it can be adjusted during induction. Sublocade may be used later once someone is stable on buprenorphine. Fentanyl-related treatment should always be medically guided.
Sources
- Indivior Inc. (2025). Sublocade (buprenorphine extended-release) injection, for subcutaneous use: Prescribing information. https://www.sublocade.com/Content/pdf/prescribing-information.pdf
- Indivior Inc. (2025). Suboxone (buprenorphine and naloxone) sublingual film: Prescribing information. https://www.suboxone.com/pdfs/prescribing-information.pdf
- Substance Abuse and Mental Health Services Administration. (2021). Chapter 3D: Buprenorphine. In Medications for opioid use disorder: Treatment Improvement Protocol (TIP) series, no. 63. National Center for Biotechnology Information. https://www.ncbi.nlm.nih.gov/books/NBK574909/
- Substance Abuse and Mental Health Services Administration. (2025). What is buprenorphine? Side effects, treatment, and use. https://www.samhsa.gov/substance-use/treatment/options/buprenorphine
- American Society of Addiction Medicine. (2020). The ASAM national practice guideline for the treatment of opioid use disorder: 2020 focused update. https://www.asam.org/quality-care/clinical-guidelines/national-practice-guideline
- Substance Abuse and Mental Health Services Administration. (2021). Medications for opioid use disorder: Treatment Improvement Protocol (TIP) series, no. 63. National Center for Biotechnology Information. https://www.ncbi.nlm.nih.gov/books/NBK574913/
- U.S. Food and Drug Administration. (2022). FDA warns about dental problems with buprenorphine medicines dissolved in the mouth to treat opioid use disorder and pain. https://www.fda.gov/drugs/drug-safety-and-availability/fda-warns-about-dental-problems-buprenorphine-medicines-dissolved-mouth-treat-opioid-use-disorder