

Can't fill your Buprenorphine prescription? Learn about alternatives like Methadone, Naltrexone, Sublocade, and Brixadi for opioid use disorder treatment.
If you've been trying to fill a Buprenorphine prescription and keep hitting dead ends, you're not alone. As we've covered in our guide on why Buprenorphine is so hard to find, about 40% of major chain pharmacies don't stock it, and rural access remains a significant challenge.
But going without treatment for opioid use disorder (OUD) is dangerous. Untreated OUD dramatically increases the risk of overdose and death. If you can't find Buprenorphine right now, there are real alternatives worth discussing with your provider.
Important: Never stop taking Buprenorphine abruptly or switch medications on your own. Always work with your prescriber to make any changes safely.
Buprenorphine is a partial opioid agonist — it partially activates the same brain receptors that heroin and prescription opioids target, but with a ceiling effect that limits euphoria and reduces the risk of respiratory depression.
It's FDA-approved for opioid use disorder (as Suboxone, Subutex, Zubsolv, and others) and for chronic pain (as Butrans patches or Belbuca buccal film). As a Schedule III controlled substance, it has lower abuse potential than full opioid agonists.
Buprenorphine works by:
Methadone is a full opioid agonist that has been used to treat opioid addiction since the 1960s. It's the oldest and most studied medication for OUD.
How it works: Methadone fully activates opioid receptors, providing stronger relief from cravings and withdrawal than Buprenorphine. However, it doesn't have the same ceiling effect, meaning the risk of overdose is higher.
Key differences from Buprenorphine:
Who it's good for: Patients with severe OUD who haven't responded well to Buprenorphine, or those who prefer the structured environment of a methadone clinic.
Naltrexone takes a completely different approach. Instead of partially activating opioid receptors, it blocks them entirely.
How it works: Naltrexone is an opioid antagonist. If you take an opioid while on Naltrexone, you won't feel the effects. This removes the incentive to use.
Available forms:
Key considerations:
Who it's good for: Highly motivated patients who have completed detox and want to prevent relapse, especially those who prefer a non-opioid approach.
If your problem is specifically finding daily sublingual Buprenorphine at a pharmacy, Sublocade may be the perfect solution — because it bypasses the pharmacy entirely.
How it works: Sublocade is a monthly subcutaneous injection of extended-release Buprenorphine. A healthcare provider injects it into your abdomen once a month, where it slowly releases Buprenorphine over 30 days.
Key benefits:
Cost: Sublocade has a list price of $1,500-$1,900 per month, but manufacturer assistance and insurance typically bring the cost down significantly.
Brixadi was FDA-approved in 2023 and offers more flexibility than Sublocade with both weekly and monthly injection options.
How it works: Like Sublocade, Brixadi is an extended-release Buprenorphine injection given subcutaneously by a healthcare provider. The weekly formulation is useful during induction, while the monthly formulation works well for maintenance.
Key benefits:
When discussing alternatives with your prescriber, consider asking:
Your provider can help you weigh the pros and cons based on your specific situation, including your history of opioid use, how long you've been on Buprenorphine, and what's available in your area.
Not being able to find Buprenorphine is stressful, but it should never mean going without treatment. Methadone, Naltrexone, Sublocade, and Brixadi are all legitimate alternatives — each with different strengths.
Start by trying to find Buprenorphine in stock near you using Medfinder. If that doesn't work, talk to your provider about the alternatives described above. And if cost is a barrier, check out our guide on saving money on Buprenorphine.
The most important thing is staying in treatment. Your recovery is worth fighting for.
You focus on staying healthy. We'll handle the rest.
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