. " "@en . "approved"@en . . "Eprazinone (trade name Eftapan) is a mucolytic drug, and relieves bronchospasms."@en . . . . . "10402-90-1"@en . . . . . . "Eprazinone"@en . . . . "withdrawn"@en . . "Eprazinone"@en . . . . . . . . "\u00C9prazinone"@en . . . . . . "U.S. Patent 3,448,192."@en . . . . . . . .