🌐EnglishEnglishDeutschPolski日本語EntityQ7178320· pop 5· linked from 15 articlesmeperidine acidchemical compoundConnectionsUnited NationsEntitydigital object identifierEntityCategories4-PhenylpiperidinesChemical pages without DrugBank identifierDrugboxes which contain changes to verified fieldsDrugboxes which contain changes to watched fieldsDrugs not assigned an ATC codeGamma-Amino acidsHuman drug metabolitesSynthetic opioids