When applying attenuated live culture vaccines through a water system, chlorine must be neutralized to best maintain the viability of the products. Ready Pack DT is a pre-measured, ready-to-use sodium thiosulfate solution that neutralizes chlorine and protects your vaccine investment. Designed for holding stock solutions and vaccines. Sodium thiosulfate is also used therapeutically in veterinary medicine as an antidote to cyanide, and as a general detoxifier for bloat. It is also commonly used to neutralize chlorine in aquariums.