A neurotrophin production/secretion promoting agent which comprises an azole derivative of the formula: ##STR00001## wherein R.sup.1 represents a halogen atom, a heterocyclic group which may optionally be substituted, a hydroxy group which may optionally be substituted, a thiol group which may optionally be substituted, or an amino group which may optionally be substituted; A represents an acyl group which may optionally be substituted, a heterocyclic group which may optionally be substituted, a hydroxy group which may optionally be substituted, or a carboxyl group which may optionally be esterified or amidated; B represents an aromatic group which may optionally be substituted; X represents oxygen atom, sulfur atom, or nitrogen atom which may optionally be substituted; and Y represents a divalent hydrocarbon group or heterocyclic group, or a salt thereof; which is useful as an agent for preventing or treating neuropathy.