The medicine label says that each 5 ml (I teaspoon) contains mg of dihydrostreptomycin sulfate.    From Wordnik.com.  [Chapter 6] Reference

Action streptomycin dihydrostreptomycin chromosomes Vicia faba.    From Wordnik.com.  [xml's Blinklist.com] Reference

The move by the European Directorate for the Quality of Medicines & HealthCare (EQDM) affects: two benzylpenicillin products manufactured by Hebei Huari Pharmaceuticals; and dihydrostreptomycin sulphate and neomycin sulphate produced by Sichuan Long March Pharmaceutical.    From Wordnik.com.  [in-PharmaTechnologist RSS] Reference

1 ml contains 25 mg of dihydrostreptomycin.    From Wordnik.com.  [Chapter 6] Reference