how/where was the bottles stored? in a dark, cool, and water-less enviroment?? or in the sun/hot area where it is damp?
first off, dont smoke methadone its useless because the methadone wil evaporate. im not raging on you, but i hate when i heard people dip their blunts in codeine sizzurp or smoke oxycodone. just swallow it man...
but yes, the potency will be significantly less than it was before. however, no on knows how much potency it lost. it could be just as good as brandnew
ALWAYS START LOW! many people die from taking too much methadone because they dont realize that it has an extremely long halflife and does not peak until 3-4hrs after you took your dose. soo you will have to be patient with this one.
i do have this question though because i am a bit worried, have you ever used opiates before??? if you have then i would start with 7.5-10mg and do not take more for 3-4hrs!! after those hours pass and you are still not at the place you want to be take another 5-10mgs. BUT if you have never even touched an opiate or opioid in your life than i highly suggest you take caution, and "give awawy" the 'done.
but if you are insisting on taking them, i cannot stop you. again if you are an opiate nnoob then only takke 5mgs to start then after 3-4 hours you still arent feeling where you want to be take another 5mg and wait another 2-3 hours.
'done is extremely sedative, with not that much euphoria IMO. however it is a full-agonist opioid and does provide and nice high, but it definitely does not give you that rush of bliss when shooting up morphine/hydromorphone. when i was using it for recreation back in the day, i was still a novice, only taking opiates about 6-8 times a month and taking lower doses like 30mgs oxy at once, but i would also combine weed, benzos, DXM, tagamet, nicotine, kava kava, and kratom. LOL i do like methadone alot though, im thinking about switching from suboxone to methadone because it does provide a nice sedative buzz.
the best high i have ever had was when i took 'done, roxicodone, klonopin, xanax, (all potentiated by DXM, diphenhydramine, lots of tagamet), and smoked a fuck ton of marijuana
stay safe man, and dont drive!!