Switching from Methadone to Suboxone
Although someone wanting to switch from Suboxone to methadone for the treatment of an opiate addiction can do so easily, switching from methadone to Suboxone can be more complicated. People on methadone will generally first have to reduce their daily dosage down considerably before switching to ensure sufficient withdrawal symptoms relief from Suboxone.
A person dissatisfied with Suboxone treatment can easily switch over to methadone, but methadone users cannot as easily switch to Suboxone.
Why Is It Difficult to Switch from Methadone to Suboxone?
There are 2 primary reasons why it can be tough to switch from methadone to Suboxone:
1. Methadone is a full opiate agonist and so it’s a lot stronger than Suboxone
Methadone is a very strong, full agonist opiate medication and Suboxone is a partial opiate agonist medication. Taking additional doses of Suboxone provides additional relief from withdrawal symptoms until this dosage ceiling is reached – and after that, taking more Suboxone has little extra effect.
People on moderate to high daily doses of methadone are receiving opiate receptor activation at a level that is above what Suboxone can provide, at any dosage. If someone switches from a moderate to high daily dosage of methadone to a high daily dose of Suboxone, they will experience a dramatic decrease in opiate receptor activation – which will result in opiate withdrawal symptoms.
Because of this, people wanting to switch from Methadone to Suboxone are advised to reduce their daily methadone dosage down to 30 mg a day for at least a week prior to switching (the switch can occur at higher daily doses, in some cases). 1
2. Methadone has a long half-life, and so stays in the body for a relatively long time
You must be experiencing significant opiate withdrawal symptoms before you take your first dosage of Suboxone. Methadone is a long lasting medication that stays in the body for a long time and so you must wait at least 36 hours (or longer) before taking your first Suboxone pill. Because withdrawal symptoms can emerge slowly, this can be an uncomfortable wait.2
References
Editor’s picks

Methadone Side Effects - What to Expect?
Thinking about using methadone but worried about the side effects? Well, firstly, know that while there are some side effects associated with the drug, it is a very well tolerated medication and most people find the side effects to be very manageable. Secondly, a lot of misinformation surrounds methadone, so some of what you may have heard may be untrue. Learn more about the side effects of methadone and learn if it might be a form of addiction treatment that will work for you.

OTC and Prescription Medications Used to Alleviate Suboxone Withdrawal Symptoms
A list of SAMHSA recommended medications for managing the withdrawal symptoms that occur during Suboxone tapering.

Why Is It Sometimes Hard to Find a Suboxone Doctor? The 100 Patient Limit
The DATA 2000 Act made it possible for doctors to treat opiate addiction with controlled substances from clinics and private offices. Office based treatment with Suboxone is convenient and perfectly suited to the needs and wants of many considering the recovery process, but frustratingly, it is not always easy to find a doctor capable of prescribing Suboxone in your area. Read on to learn why not all doctors can prescribe this medication and to find out how to find a doctor that can!

Avoiding Methadone Overdose During the Dangerous First 2 Weeks
Your risk of overdose is higher during the first 2 weeks on methadone than it was before you started. Learn how to stay safe until you get stabilized.

MAT Tapering - Don't Get Stuck! How to Avoid Common Pitfalls.
If you choose to taper, don't trip-up on common problems - learn how to handle fear, complacency, physical/emotional withdrawal and cravings.