Couple of quick thoughts: When I was on Methadone (maybe 3 years ago?).....I had a breakthrough med w/ it. I've been on so much, just about every combo, that I can't remember "which" one right now.... Just from reading other posts here and my own experiences, I think when a doctor says something like "I don't prescribe "xyz" w/ "xyz" (and it's not two meds that can't be combined, or something else) - I believe it has to do w/ the doc and his/her own experiences, viewpoints, etc.
Same thing with combining two long acting meds. When I first started long acting meds (after going through all the short-acting ones)....I was started on a combo of long-acting meds. Looking back, I'm not really sure why! (I'm much more "pro-active" re: my health now...and know why I'm taking certain things, etc...but, in the beginning, I did as I was told!!).... Anyway, I was on a combo of morphine and oxy -- plus a breakthrough med. After a move and going to a new pain clinic - the new doc thought that was way too complicated....and put me on one LA med (w/ a higher dosage) and one BT med.
All of that said, I never took methadone w/ a LA med. To be honest, I can't remember ever seeing anything in all my CP readings about methadone combined w/ a LA med. Hmmmm. But maybe someone else has?
Pain Issues: Neck/back pain; migraines; carpal tunnel syndrome; widespread joint/muscle pain, nerve pain in hands, arms, feet; I also have POTS/dysautonomia; CFS/Fibromyalgia; Severe Hypertension; Hypothyroidism; Addison's Disease; Central Sleep Apnea; etc etc
Meds: MS Contin (480mg daily); Dilaudid (8mg/3x day); Actiq (1200 mcgs/1x per day); Soma (3x day); Atenolol; Midodrine; Phenergan; Effexor and on the list goes...
Future Plans: Intrathecal Pain Pump; already completed trial; awaiting my decision for implantation