Formulations of viloxazine

An extended release formulation comprising viloxazine or a pharmaceutically acceptable salt thereof, at least one release rate controlling compound, and at least one pharmaceutically acceptable excipient homogeneously intermixed to form a matrix, wherein the at least one release rate controlling compound is selected from the group consisting of hydroxypropyl cellulose, hydroxypropyl methyl cellulose, methyl cellulose, polyethylene oxide, acacia, an acrylic acid derivative, alginic acid, a salt of alginic acid, a derivative of alginic acid, hydroxyethyl cellulose, povidone, carrageenan, carboxymethylcellulose, tragacanth, polyvinyl alcohol, xanthan gum and combinations thereof.