The invention relates to a
solid water-dispersible pharmaceutical composition for use in the treatment of a
disease, said treatment comprising dispersing said pharmaceutical composition into an aqueous liquid to produce an enteraliy administrable liquid containing at least 0.5
gram of said pharmaceutical composition and at least 0.3 g / 1 of
edaravone, followed by
enteral administration of said enteraliy administrable liquid to a
human patient in an amount to provide a
dose of 30-300 mg of
edaravone, said pharmaceutical composition comprising: 2-50 weight % of 3-methyl-l-phenyl-2-pyrazolin-5-one (
edaravone); and 3-50 weight % of a water-soluble
alkalizing agent. This
solid composition containing edaravone can be easily dispersed in an aqueous liquid to prepare an
aqueous solution of edaravone that can be ingested by a patient. The
solid composition of the invention provides the
advantage that when the composition is introduced into water the edaravone dissolves very rapidly and the enteraliy administrable liquid thus obtained has a high oral
bioavailability.