Normosol-R is a sterile, nonpyrogenic isotonic solution of balanced electrolytes in water for injection. The solution is administered by intravenous infusion for parenteral replacement of acute losses of extracellular fluid. Each 100 mL of Normosol-R contains sodium chloride, 526 mg; sodium acetate, 222 mg; sodium gluconate, 502 mg; potassium chloride, 37 mg; magnesium chloride hexahydrate, 30 mg. May contain HCl and/or NaOH for pH adjustment. pH 6.6 (4.0 to 8.0); 294 mOsmol/liter (calc.). Electrolytes per 1000 mL (not including pH adjustment): Sodium 140 mEq; potassium 5 mEq; magnesium 3 mEq; chloride 98 mEq; acetate 27 mEq; gluconate 23 mEq. The solution contains no bacteriostat, antimicrobial agent or added buffer (except for pH adjustment) and is intended only for use as a single-dose injection. When smaller doses are required the unused portion should be discarded.