A device comprising: a) at least one biocompatible polymer, wherein the at least one biocompatible polymer is selected from the group comprising poly ethylene-vinyl-acetate, poly vinyl acetate, silicone, polycaprolactone, polylactic co-glycolic acid (PLGA), polylactic acid and polyglycolic acid; and b) an eutectic composition is selected from the group consisting of: a) lidocaine and myristic acid; or b) lidocaine and palmitic acid; or c) lidocaine, palmitic acid, and oleic acid; or d) bupivacaine and myristic acid; or e) bupivacaine, myristic acid, and oleic acid; or f) bupivacaine, myristic acid, and lauric acid; or g) ropivacaine and myristic acid; or h) ropivacaine and palmitic acid; or i) ibuprofen and palmitic acid; or j) lidocaine and hexanoic acid; or k) lidocaine and capric acid; or l) lidocaine and lauric acid; or m) lidocaine and hexanedioic acid; or n) lidocaine and decanedioic acid; or o) lidocaine and dodecanedioic acid; or p) lidocaine and tetradecanedioic acid; or q) lidocaine and 3-methyl-3-pentanol; or r) lidocaine and 1-decanol; or s) lidocaine and 1-dodecanol; or t) lidocaine and 1-tetradecanol; or u) ropivacaine and decanoic acid; or v) ropivacaine and decanedioic acid; or w) ropivacaine and dodecanoic acid; or x) ropivacaine and 1-tetradecanol; or y) prilocaine and lauric acid; or z) prilocaine and hexanedioic acid; or aa) prilocaine and decanedioic acid; bb) prilocaine and dodecanoic acid; or cc) ropivacaine and 1-decanol; and wherein the device is a) an implant suitable for administration by implantation, or b) an insertable device. a) at least one biocompatible polymer, wherein the at least one biocompatible polymer is selected from the group comprising poly ethylene-vinyl-acetate, poly vinyl acetate, silicone, polycaprolactone, polylactic co-glycolic acid (PLGA), polylactic acid and polyglycolic acid; and b) an eutectic composition is selected from the group consisting of: a) lidocaine and myristic acid; or b) lidocaine and palmitic acid; or c) lidocaine, palmitic acid, and oleic acid; or d) bupivacaine and myristic acid; or e) bupivacaine, myristic acid, and oleic acid; or f) bupivacaine, myristic acid, and lauric acid; or g) ropivacaine and myristic acid; or h) ropivacaine and palmitic acid; or i) ibuprofen and palmitic acid; or j) lidocaine and hexanoic acid; or k) lidocaine and capric acid; or l) lidocaine and lauric acid; or m) lidocaine and hexanedioic acid; or n) lidocaine and decanedioic acid; or o) lidocaine and dodecanedioic acid; or p) lidocaine and tetradecanedioic acid; or q) lidocaine and 3-methyl-3-pentanol; or r) lidocaine and 1-decanol; or s) lidocaine and 1-dodecanol; or t) lidocaine and 1-tetradecanol; or u) ropivacaine and decanoic acid; or v) ropivacaine and decanedioic acid; or w) ropivacaine and dodecanoic acid; or x) ropivacaine and 1-tetradecanol; or y) prilocaine and lauric acid; or z) prilocaine and hexanedioic acid; or aa) prilocaine and decanedioic acid; bb) prilocaine and dodecanoic acid; or cc) ropivacaine and 1-decanol; and a) lidocaine and myristic acid; or b) lidocaine and palmitic acid; or c) lidocaine, palmitic acid, and oleic acid; or d) bupivacaine and myristic acid; or e) bupivacaine, myristic acid, and oleic acid; or f) bupivacaine, myristic acid, and lauric acid; or g) ropivacaine and myristic acid; or h) ropivacaine and palmitic acid; or i) ibuprofen and palmitic acid; or j) lidocaine and hexanoic acid; or k) lidocaine and capric acid; or l) lidocaine and lauric acid; or m) lidocaine and hexanedioic acid; or n) lidocaine and decanedioic acid; or o) lidocaine and dodecanedioic acid; or p) lidocaine and tetradecanedioic acid; or q) lidocaine and 3-methyl-3-pentanol; or r) lidocaine and 1-decanol; or s) lidocaine and 1-dodecanol; or t) lidocaine and 1-tetradecanol; or u) ropivacaine and decanoic acid; or v) ropivacaine and decanedioic acid; or w) ropivacaine and dodecanoic acid; or x) ropivacaine and 1-tetradecanol; or y) prilocaine and lauric acid; or z) prilocaine and hexanedioic acid; or aa) prilocaine and decanedioic acid; bb) prilocaine and dodecanoic acid; or cc) ropivacaine and 1-decanol; and a) an implant suitable for administration by implantation, or b) an insertable device.