I recently acquired old methadone pills (5 yrs old I think). I like to have emergency Meds for events like Katerina or Harvey. I didn’t know anything about this brand until I researched it, and it is not in the Orange Book, nor is it listed on the manufacturer’s website. I did find old pain management forum posts from 2012-2015 that basically said it sucked. Had about 50% effectiveness as other generics. Anyone know how long these types of pills are good for and I have no idea how it was stored. I don’t plan on taking them unless their is a zombie apocalypse and I am out of my usual pain medication. One of the pills had orange stuff on it, bacterial growth maybe? Would a wheel filter be good? What size and type. I know very little about methadone. I took it 20 yrs ago for a few weeks at a time at a clinic when I was in a bad way. Any info would be helpful.