Hi Marry, All Total I probably took it for 2/1/2 years. maybe a little longer. After titrating and a doc change I biounced between 120 mhgs of meth and 600 mgs of morphine "kadian/mscontin" I really didn'tlike the way it made me feel but it made the pain tolerable. I had a huige increase in pain in thespring of 2004 and after some duiagnostics that showed more hardware breakage and damage they increased the dose to 160 mgs and after 3 months I was ready to do another pump trial. The did a siggle bolus injection instead of the inpatient, the first inpatient was skewed by a spinal fluid leak and I wasn't ready to make a decsion.
I couldn't stand the side efects at the higher dose so I went with the pump. Medicare didn't have script insurance and this allowed me to use something other than meth becausee they do cover the pump and refills. Going from meth to IT "intrathecal" morphine was like going from a very grey depressed world to life full of color with motivation to make some changes. I'm not getting tremendously better relief, but I'm not as sedated/impaired and the life that meth made exceptable was no longer acceptable.
Pain wise it worked well, I never woke up feeling the need to take a dose, It stays in your system and is very forgiving about missing a dose, Tolerance really wasn't an issue and is one the known benefits of meth. I just think it didn't mix well with me or my mental state about being disabled. It lowered my testosterone leves significantlyly, and kind of made an unexceptable situation exceptable. I understand pain meds make unexceptable levels of pain exceptable, but there was a greater effect that I found very negative about methadone.
I'm sure that's different for everyone, it became worse at the higher dose , so I'm not saying that to warn you. But if he loses his sex drive, I would definitely get his T levels checked, It can be supllemented. Which gives guys energy and motivation to thump their chest once in a while.

As far as dose I would see that as tolerance, but as titration. Docs have to start low and moving him up slowly is normal. If he's undermedicated, it takes a week to level out, but waiting a month between adjustments sucks.
I was able to switch to morphine 3 times and once we had my dose figured out it was always a cold switch and days 4-14 where pretty hairy. I remeber not being able to focus my eyes, and being very depressed. It wasn't so much the classic opiate withdrawal, but it was pretty unpleaseant switching away each time but never a problem switching back.It was worth it because my head felt much clearer on morphine.
Everyone is different though. Some folks tolerate it well and although it's been 3 months, his dose may still not be right. The idea is to be productive as he can, I think he said it in his post that you do have to put up with some pain if you don't want to be a zombie. That's true with any med and any route of delivery.
I'm no different than anyone else though, there are plenty of days I wish I could be pain free for just a few hours and not a day goes by I don't wonder if another surgery would be the answer.
Take care, Dave