The answer is not just about days or weeks. Sublocade is designed to work very differently from other medications used in opioid recovery. It builds up slowly, releases steadily, and can remain in your body far longer than most people expect.
Understanding that timeline can help you make better decisions about treatment, tapering, and long term recovery.
What Is Sublocade and Why Does It Last So Long?
Sublocade is an extended release form of buprenorphine. It is given as a monthly injection rather than a daily medication. After the injection, the medication forms a small depot under the skin. That depot slowly releases buprenorphine into your bloodstream over time.
This is why a Sublocade shot lasts longer than medications like Suboxone. Instead of daily dosing, your body gets a steady level of medication for weeks. That slow release is what helps reduce cravings and stabilize recovery without the ups and downs of short acting opioids.
Table 1. Sublocade At a Glance
| Category | Details |
|---|---|
| Medication Name | Sublocade |
| Generic Name | Buprenorphine (extended-release) |
| Drug Class | Partial opioid agonist |
| Primary Use | Treatment of opioid use disorder |
| How It’s Given | Monthly subcutaneous injection (administered by a provider) |
| Typical Dosing | 300 mg monthly for first 2 months, then 100 mg monthly maintenance (some remain on 300 mg) |
| Onset of Action | Begins releasing within hours, stabilizes over several days |
| Duration of Effects | About 28 to 30 days per injection |
| Half-Life | Approximately 43 to 60 days |
| Time in System | 2 to 5 months after last dose, sometimes longer |
| Build-Up in Body | Yes, accumulates with repeated monthly injections |
| Withdrawal Timeline | Delayed and gradual due to slow release |
| Drug Testing | Detectable on specialized buprenorphine tests |
| Risk of Misuse | Low due to injection form and steady release |
| Common Side Effects | Constipation, headache, nausea, injection site reactions |
| Serious Risks | Respiratory depression (rare), liver effects, precipitated withdrawal if started too early |
| Key Advantage | No daily dosing, stable blood levels, reduced cravings |
| Considerations | Requires commitment to monthly visits and medical oversight |
How Long Does Sublocade Stay in Your System?
Sublocade can stay in your system for several months after your last injection.
Here is a realistic breakdown:
- The medication is designed to last about 28 to 30 days per injection
- After multiple doses, it builds up in your system
- Detectable levels of buprenorphine can remain for 2 to 5 months, sometimes longer
- In some cases, trace amounts may be present for 6 months or more
This happens because the medication is stored in that subcutaneous depot and released slowly over time.
Even after you stop receiving injections, your body continues absorbing what remains.
Why the Timeline Varies From Person to Person
Not everyone processes Sublocade the same way. A few things can change how long it sticks around:
Number of injections received
The more doses you have had, the more the medication builds up in your system.
Metabolism
People with faster metabolisms may clear the drug slightly quicker, but the difference is usually not dramatic.
Body composition
Because Sublocade is stored in fatty tissue, body fat percentage can influence how long it releases.
Liver function
Since buprenorphine is processed in the liver, liver health plays a role.
How Long Do the Effects Last?
The effects and the presence in your system are not the same thing. Most people feel the therapeutic effects for about a month after each injection. That is the intended design.
But after stopping treatment, you may still feel mild effects for weeks as the medication tapers naturally in your body.
This built in taper is one of the biggest advantages of Sublocade. It reduces the intensity of withdrawal compared to stopping short acting opioids suddenly.
Can Sublocade Show Up on a Drug Test?
Yes, Sublocade can show up on drug tests, but it depends on the type of test.
- Standard drug screens may not always detect buprenorphine
- Specialized tests designed for buprenorphine will detect it
- It can remain detectable for weeks to months after your last dose
If you are being tested, it is important to disclose that you are prescribed Sublocade.
What Happens When You Stop Sublocade?
Because Sublocade leaves your system slowly, withdrawal tends to be delayed and more gradual.
Some people experience:
- Mild fatigue
- Sleep changes
- Mood fluctuations
- Low level cravings
For many, symptoms are far less intense than withdrawal from short acting opioids. Still, stopping should always be planned with medical support. Even a slow taper can come with challenges if you are not prepared.
Is Sublocade Right for Long Term Recovery?
Sublocade can be a strong option for people who want stability without daily medication. It removes the need to remember doses, lowers the risk of misuse, and creates a consistent foundation for recovery work.
At the same time, it is not a one size fits all solution. Some people prefer the flexibility of other medications, while others benefit from the structure Sublocade provides.
Getting Help That Actually Fits Your Life
If you are thinking about starting or stopping Sublocade, it helps to talk through it with a team that understands both the medical side and the real life side of recovery.
At Brooks Healing Center, treatment is built around the person, not just the medication. Whether you are exploring medication assisted treatment or looking for a path off of it, having support makes a real difference.
Frequently Asked Questions About Sublocade
Is Sublocade the same as Suboxone?
No, they are not the same, but they are closely related. Both contain buprenorphine, which helps reduce cravings and withdrawal symptoms. The difference is how they are taken. Suboxone is typically a daily film or tablet taken at home, while Sublocade is a monthly injection given by a provider. Sublocade also does not contain naloxone and provides a steady release over time instead of daily dosing.
What are the side effects of Sublocade?
Sublocade can cause side effects, though many people tolerate it well. Common ones include constipation, headache, nausea, fatigue, and mild pain or irritation at the injection site. Some people also notice sleep changes or mood shifts. More serious risks, while less common, can include breathing problems, liver issues, or allergic reactions. Any unusual or severe symptoms should be evaluated by a medical provider.
Does Sublocade get you high?
Sublocade is not intended to produce a high. It contains buprenorphine, which is a partial opioid agonist. That means it activates opioid receptors just enough to prevent withdrawal and cravings, but it has a ceiling effect that limits euphoria. Most people feel stable and normal on it rather than intoxicated. Trying to misuse it does not typically produce the same effects as full opioids.
How long does Sublocade last?
Each injection is designed to last about 28 to 30 days. That is why it is given monthly. However, the medication stays in your system much longer than that. After multiple doses, it can remain in your body for several months as it slowly tapers off.
Is Sublocade a controlled substance?
Yes, Sublocade is a controlled substance. It is classified as a Schedule III medication in the United States. This means it has accepted medical use but also some potential for misuse or dependence. Because of this, it is only administered by healthcare providers and is part of a structured treatment plan.
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