desmethylprodine
furethidine
thiafentanil
oxpheneridine
betamethadol
hydromorphone
MCAT
cocaine
meow
acetylmethadol
noracymethadol
allylescaline
metaescaline
alfentanil
buprenorphine
pyrilamine
isomethadone
carbocaine
methcathinone
scandicain
U-47700
acamprosate
alphacetylmethadol
alphamethadol
Adderall
nefopam
codeine
levacetylmethadol
nitazene
tramadol
diacetylnalorphine
norpipanone
morpheridine
alimadol
ciprefadol
2C-B
meph
naphthylpiperazine
betacetylmethadol
resveratrol
miroprofen
metopon
tetramic acid
hydroxypropiophenone
fedotozine
sonepiprazole
dioxaphetyl butyrate
remifentanil
lophophine
Vicodin
meconin
thiambutene
metonitazene
laudanum
phenacetin
Ovulen
doxpicomine
Percocet
ethylmethylthiambutene
etonitazene
myrophine
tenamfetamine
flupirtine
-cain-
hydromorphine
Maxiton
cube juice
diallylthiambutene
purple heart
Dilaudid
piperidylthiambutene
chlorodyne
acetylfentanyl
methylisopropylthiambutene
methylpropylthiambutene
pyrrolidinylthiambutene
chlorpromazine
mesc
nalmefene
morpholinylthiambutene
hydromorphone hydrochloride
oliceridine
dihydrophenanthridine
synephrine
isoproscaline
morphia
homarylamine
morphine
proparacaine
lorpiprazole
methoxydine
Ts and blues
benzyltetrahydroisoquinoline
prodilidine
fenproporex
mesoploid
nonopioid

English words for '1-methyl-4-phenyl-4-propionoxypiperidine, an opioid analgesic drug developed in the 1940s, an analogue of meperidine, sometimes used recreationally.'

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