Tianeptine has a real short half life, getting a habit to that would be pretty rough and involve round the clock dosing.
Kratom would be worth a shot, but if buprenorphine doesn't hold the OP, I wouldn't bet that kratom would do much better.
Poppy seed tea is going to provide a strong full agonist (as it's morphine), but you need to test out batches of it really carefully, as sometimes it can be quite strong. It has the benefit of slowing metabolism due to the other poppy alkaloids, so you won't need to redose as much as if you were taking pharmaceutical morphine.
However, it is kind of precarious legally, and it would be wise to have a backup plan if it gets clamped down upon and suddenly becomes hard to find.
Have you tried gabapentenoids such as gabapentin or pregabalin? Those sometimes work for nerve pain. Also tricyclic antidepressants work for some types of nerve pain.
Kratom would be worth a shot, but if buprenorphine doesn't hold the OP, I wouldn't bet that kratom would do much better.
Poppy seed tea is going to provide a strong full agonist (as it's morphine), but you need to test out batches of it really carefully, as sometimes it can be quite strong. It has the benefit of slowing metabolism due to the other poppy alkaloids, so you won't need to redose as much as if you were taking pharmaceutical morphine.
However, it is kind of precarious legally, and it would be wise to have a backup plan if it gets clamped down upon and suddenly becomes hard to find.
Have you tried gabapentenoids such as gabapentin or pregabalin? Those sometimes work for nerve pain. Also tricyclic antidepressants work for some types of nerve pain.