Liquid formula is designed for the disposal of liquids and syringed medications. Medications are adsorbed and neutralized byactivated charcoal. All products come with a hardening agent to solidify contents and meet the EPAs free liquid landfill test method. Once contents are within 2" of the bottle opening, simply add the hardening agent, agitate, and dispose. Compatible with syrups, injectables, suspensions, solutions, and elixirs.