Synonyms|44Antonyms|0|Broader|0Narrower|0Related|0
2
red
1
alcohol
1
analgesic
1
anodyne
1
barb
1
barbiturate
1
blue devil
1
blue velvet
1
calmative
1
codeine
1
depressant
1
dolly
1
downer
1
goofball
1
hard stuff
1
heroin
1
hop
1
hypnotic
1
junk
1
knockout drops
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APASmart Define. (2015). phenobarbital sodium thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/phenobarbital_sodium/thesaurus/synonyms
ChicagoSmart Define. 2015. "phenobarbital sodium thesaurus" https://smartdefine.org/phenobarbital_sodium/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, phenobarbital sodium thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/phenobarbital_sodium/thesaurus/synonyms>.
MLASmart Define. "phenobarbital sodium thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/phenobarbital_sodium/thesaurus/synonyms>