Whirlwind not sure if this helps but was just thinking of something said to me when leaving the hospital last August, the last time I had pneumonia. I was given 8 pills, and sent home being told they were very strong antibiotics that would easily clear up my lungs, the infection causing the problem BUT I could only take just the 8 because after that amount the effectivness of the pills would disipate, not work anymore, as my system would be use to them by then. I took the eight, got well, and that was that.
If it were me, I would tell him to get at least two if not more more opinions as to why anyone would have to take antibiotics forever. Also how could they be effective for so long??? Sounds very weird to me...kind of 'quacky,' if you get my drift!