Abstract: A pharmaceutical liquid composition includes a solution of a physiologically acceptable salt of 4-phenylbutyric acid, which in one embodiment is the sodium salt of 4-phenylbutyric acid, in an aqueous medium at a concentration of at least 1.34 mmol/ml. The aqueous medium includes glycerol; a viscosity enhancing agent, where the viscosity enhancing agent includes a cellulose derivate, and water. The pharmaceutical liquid composition further includes a sweetening agent.
Abstract: A pharmaceutical liquid composition includes a solution of a physiologically acceptable salt of 4-phenylbutyric acid, which in one embodiment is the sodium salt of 4-phenylbutyric acid, in an aqueous medium at a concentration of at least 1.34 mmol/ml. The aqueous medium includes glycerol; a viscosity enhancing agent, where the viscosity enhancing agent includes a cellulose derivate, and water. The pharmaceutical liquid composition further includes a sweetening agent.