Top 10 similar words or synonyms for phenperidine

oxmorphone    0.944584

tolpronine    0.889211

metazocin    0.872184

nalbuphin    0.871124

butacetin    0.870233

tonazocine    0.867090

ketobenidone    0.866988

oxilorphan    0.865909

ketazocine    0.860386

noracymethadol    0.860155

Top 30 analogous words or synonyms for phenperidine