Disclosed is a pharmaceutical composition in the form of a solid dosage for oral administration, the composition comprising a core comprising phenylephrine or a pharmaceutically acceptable salt thereof in a sustained release matrix comprising hydroxypropyl methylcellulose and further comprising one or more hydrophilic or hydrophobic polymers outside the core, wherein the phenylephrine or a pharmaceutically acceptable salt thereof comprises approximately 1 to 25 percent of the tablet weight, and the hydroxypropyl methylcellulose comprises approximately 10 to 50 percent of the tablet weight and wherein the hydrophobic polymer is crosslinked acrylic acid.
