I feel like I want to tell you how dangerous what you're doing is, and how you shouldn't be trying to treat BP by yourself, but I suppose you know already. I would like to know how Meth helps BP, unless you mean you smoke it because you feel depressed. Because I think Meth will make you more manic. I'm not BP and one reason I used to love Meth was it made me manic. But Meth is too crazy. Have you ever tried Adderall? I think Adderall are a great improvement in amphetamines, over even meth. I'll tell you why. The one thing no one likes with Meth is the crash. That's why I'm surprised you wanted to do it. I loved the high from Speed, as I used to call it, but the crash always made me depressed. So much so that I used to never crash until I had to. But when I did Adderall, I was very pleasantly shocked to find there was no crash. In fact my usual depression didn't return for about 10 days after I ran out of Adderall. Unfortunately I was getting them from a doc and I had to quit them. It was a temporary thing. But if you want an amphetamine head, try and get Adderall, I think they are way better.
So now to answer your question, when I took the Adderall I was also on Subutex, which is like Suboxone only without Naloxone in them. In my experience Sub didn't block the effects of amphetamines. It may have changed the head a little, but I'm uncertain because I never took Adderall without being on Sub. But it doesn't block the effects like it does with other opiates. However, I have been wondering if the Sub had anything to do with me not crashing off Adderall. Are you planning on using Sub to crash from Meth? If you do I'd really like to know what happens, would you come back here and tell me? I also have 1 other question. Why are you taking Sub? Are you opiate dependent or you just want to do Sub? If you are not opiate dependent, do very little Sub. It can kill a person who isn't opiate dependent. The opiate in Sub is Bupe, and Bupe is very strong. It's as strong as Heroin is. So do very little, like 1 or 2 mg at the most. And give it 2 hours to get into you. Even though you dissolve it in your mouth, the effect is not immediate. You need 2 hours for the full effect.
I hope you post back.
I also friended you, so you can send me a private message if you want to. I would like to help you if I can. Us Meth ppl have to stick together.