| abstract |
A pharmaceutical composition comprising a first component comprising a short-acting hypnotic or a pharmaceutically acceptable salt thereof; a second component comprising at least one particle, wherein the at least one particle comprises a core and at least one coating over the core, the core comprising a short-acting hypnotic or a pharmaceutically acceptable salt thereof, and the at least one coating comprising at least one pharmaceutically acceptable polymer that is soluble at a pH greater than or equal to about 5.5, and optionally a third component comprising at least one particle, wherein the at least one particle comprises a core and at least one coating over the core, the core comprising a short-acting hypnotic or a pharmaceutically acceptable salt thereof, and the at least one coating comprising at least one pharmaceutically acceptable polymer that is soluble at a pH greater than or equal to about 6.0. Methods of treating sleep disorders, prolonging sleep, and inducing sleep using these compositions are also disclosed. |