Abstract: The present invention relates to a method for the production of a formulation that is stable to oxidation and that is based on paracetamol in an aqueous solvent, comprising the steps of (i) dissolving paracetamol in an aqueous solvent comprising an isotonic agent that is sodium chloride and a buffer agent that is sodium citrate, having a temperature between 65° C. and 95° C. and having pH between 5.0 and 6.0 in a reaction vessel, (ii) replacing the remaining air in the vessel by an inert gas, such as nitrogen, and cooling the solution so formed to a temperature below 38° C., (iii) adding cysteine hydrochloride to the solution without mechanical agitation, and (iv) closing the reaction vessel and mechanically agitating the solution in a nitrogen atmosphere. The further relates to a formulation prepared according to the method.

Abstract: The present invention relates to a method for the production of a formulation that is stable to oxidation and that is based on paracetamol in an aqueous solvent, comprising the steps of (i) dissolving paracetamol in an aqueous solvent comprising an isotonic agent that is sodium chloride and a buffer agent that is sodium citrate, having a temperature between 65° C. and 95° C. and having pH between 5.0 and 6.0 in a reaction vessel, (ii) replacing the remaining air in the vessel by an inert gas, such as nitrogen, and cooling the solution so formed to a temperature below 38° C., (iii) adding cysteine hydrochloride to the solution without mechanical agitation, and (iv) closing the reaction vessel and mechanically agitating the solution in a nitrogen atmosphere. The further relates to a formulation prepared according to the method.

Abstract: The present invention concerns a liquid formulation that is stable to oxidation and that is based on paracetamol in an aqueous solvent obtainable by the following steps: (i) dissolving in a reaction vessel paracetamol in an aqueous solvent having a temperature between 65° C. and 95° C., and having pH between 5.0 and 6.0; (ii) cooling the solution so formed to a temperature equal to or above 35° C. and below 40° C. under an atmosphere of nitrogen; (iii) adding cysteine hydrochloride and sodium hydroxide simultaneously to the solution without stirring; (iv) closing the reaction vessel, and stirring the solution of step iii) in a nitrogen atmosphere. It further relates to a method for preparing the formulation.

Abstract: The present invention concerns a liquid formulation that is stable to oxidation and that is based on paracetamol in an aqueous solvent obtainable by the following steps: (i) dissolving in a reaction vessel paracetamol in an aqueous solvent having a temperature between 65° C. and 95° C., and having pH between 5.0 and 6.0; (ii) cooling the solution so formed to a temperature equal to or above 35° C. and below 40° C. under an atmosphere of nitrogen; (iii) adding cysteine hydrochloride and sodium hydroxide simultaneously to the solution without stirring; (iv) closing the reaction vessel, and stirring the solution of step iii) in a nitrogen atmosphere. It further relates to a method for preparing the formulation.

Abstract: The present invention concerns a liquid formulation that is stable to oxidation and that is based on paracetamol in an aqueous solvent obtainable by the following steps: (i) dissolving in a reaction vessel paracetamol in an aqueous solvent having a temperature between 65° C. and 95° C., and having pH between 5.0 and 6.0; (ii) cooling the solution so formed to a temperature equal to or above 35° C. and below 40° C. under an atmosphere of nitrogen; (iii) adding cysteine hydrochloride and sodium hydroxide simultaneously to the solution without stirring; (iv) closing the reaction vessel, and stirring the solution of step iii) in a nitrogen atmosphere. It further relates to a method for preparing the formulation.

Abstract: The present invention concerns a liquid formulation that is stable to oxidation and that is based on paracetamol in an aqueous solvent obtainable by the following steps: (i) dissolving in a reaction vessel paracetamol in an aqueous solvent having a temperature between 65° C. and 95° C., and having pH between 5.0 and 6.0; (ii) cooling the solution so formed to a temperature equal to or above 35° C. and below 40° C. under an atmosphere of nitrogen; (iii) adding cysteine hydrochloride and sodium hydroxide simultaneously to the solution without stirring; (iv) closing the reaction vessel, and stirring the solution of step iii) in a nitrogen atmosphere. It further relates to a method for preparing the formulation.