The invention relates to an effervescent tablet for preparing a mouth rinsingsolution,wherein the effervescent tablet exhibits a high release rate of budesonide Ahigh availabilityof the active ingredient during use as a mouth rinsing solution on theinflamed mucosa ofthe upper digestive tract is thereby achieved. The advantage of theformulation according tothe invention lies in the bioavailability comparable to oral forms ofadministration, whichallows the formulation to be used safely over an extended period of time.
