TIROSINT-SOL oral solution is a clear, colorless to slightly yellow solution supplied in a 1 mL white, non-transparent, unit-dose ampule and is available in the following strengths (mcg/mL): 13, 25, 50, 75, 88, 100, 112, 125, 137, 150, 175, 200. The inactive ingredients in TIROSINT-SOL are glycerol and water.