Abstract: 25-desacetyl rifaximin or a pharmaceutically acceptable salt thereof is provided. Methods of treatment of bowl related disorders using isolated and/or purified 25-desacetyl rifaximin or a pharmaceutically acceptable salt thereof are also provided.

Abstract: The invention discloses a pharmaceutical composition comprising phenylephrine or a pharmaceutically acceptable salt thereof and an erodible layer which is for oral administration wherein the composition delivers phenylephrine or a pharmaceutically acceptable salt thereof via absorption in the colon. The pharmaceutical composition comprises a core comprising phenylephrine or a pharmaceutically acceptable salt thereof and an erodible layer which is in a time-dependent, pH-dependent, or colon-specific enzyme-dependent erodible layer that degrades to expose the core to release phenylephrine in the colon. In one preferred embodiment, the erodible layer encases the core. The composition optionally further comprises phenylephrine in the erodible layer or other additional layer(s).

Abstract: 25-desacetyl rifaximin or a pharmaceutically acceptable salt thereof is provided. Methods of treatment of bowl related disorders using isolated and/or purified 25-desacetyl rifaximin or a pharmaceutically acceptable salt thereof are also provided.

Abstract: The present invention relates to new rifaximin forms comprising solid dispersions of rifaximin, methods of making same and to their use in medicinal preparations and therapeutic methods.

Abstract: The invention discloses a pharmaceutical composition comprising phenylephrine or a pharmaceutically acceptable salt thereof and an erodible layer which is for oral administration wherein the composition delivers phenylephrine or a pharmaceutically acceptable salt thereof via absorption in the colon. The pharmaceutical composition comprises a core comprising phenylephrine or a pharmaceutically acceptable salt thereof and an erodible layer which is in a time-dependent, pH-dependent, or colon-specific enzyme-dependent erodible layer that degrades to expose the core to release phenylephrine in the colon. In one preferred embodiment, the erodible layer encases the core. The composition optionally further comprises phenylephrine in the erodible layer or other additional layer(s).

Abstract: 25-desacetyl rifaximin or a pharmaceutically acceptable salt thereof is provided. Methods of treatment of bowl related disorders using isolated and/or purified 25-desacetyl rifaximin or a pharmaceutically acceptable salt thereof are also provided.

Abstract: A concentrated poly(ethylene glycol) solution that has good stability for extended storage is provided for use as a laxative. The concentrated solution comprises water, sodium benzoate, poly(ethylene glycol), and enough acid to yield a solution having a pH at 25° C. in the range 3.0-5.0. It is prepared and packaged to minimize the accumulation of degradation products.

Abstract: A concentrated poly(ethylene glycol) solution that has good stability for extended storage is provided for use as a laxative. The concentrated solution comprises water, sodium benzoate, poly(ethylene glycol), and enough acid to yield a solution having a pH at 25° C. in the range 3.0-5.0. It is prepared and packaged to minimize the accumulation of degradation products.

Abstract: The present invention relates to new rifaximin forms comprising solid dispersions of rifaximin, methods of making same and to their use in medicinal preparations and therapeutic methods.

Abstract: Pharmaceutical compositions comprising phenylephrine or a pharmaceutically acceptable salt thereof and methods for administering the pharmaceutical compositions wherein the composition is formulated for systemic absorption of phenylephrine that avoids first pass metabolism. The compositions of the invention are formulated to be applied to oral mucosa of an animal to allow for enhanced systemic delivery of therapeutically active form of phenylephrine.

Abstract: Compositions of matter containing an active agent, and methods of manufacturing thereof, wherein the method comprises the step of coating a substrate with a coating composition comprising the active agent formulated for immediate release, wherein the coating composition does not contain an appreciable amount of cellulosic materials and preferably comprises polyvinyl alcohol or a polyvinyl alcohol derived copolymer.

Abstract: The invention discloses a pharmaceutical composition comprising phenylephrine or a pharmaceutically acceptable salt thereof and an erodible layer which is for oral administration wherein the composition delivers phenylephrine or a pharmaceutically acceptable salt thereof via absorption in the colon. The pharmaceutical composition comprises a core comprising phenylephrine or a pharmaceutically acceptable salt thereof and an erodible layer which is in a time-dependent, pH-dependent, or colon-specific enzyme-dependent erodible layer that degrades to expose the core to release phenylephrine in the colon. In one preferred embodiment, the erodible layer encases the core. The composition optionally further comprises phenylephrine in the erodible layer or other additional layer(s).