A gastrointestinal cocktail, known as a GI cocktail, is a generic term for a mixture of liquid antacid, viscous lidocaine, and an anticholin ergic primarily used to treat dyspepsia.[1] The GI cocktail may also deceptively mask pain originating from the hearThere is a wide variety of GI cocktail recipes in use today. A very popular one is a mixture of Maalox, viscous lidocaine, and Donnatal, in equal parts.[3] A mixture of 10-30 ml Mylanta, 10 ml Donnatal and 10 ml viscous lidocaine is known as "The Green Goddess".[4] The efficacy of this mixture for the treatment of dyspepsia is generally considered superior to treatment with only any one of its components