Compositions Of Dimethyl Trisulfide (DMTS) As A Cyanide Antidote
AssigneeSouthwest Research Institute
InventorsHong DIXON, Joseph A. McDONOUGH
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Abstract
The present disclosure is directed at compositions of dimethyl trisulfide (DMTS) suitable for use for treatment of cyanide intoxication. The compositions show particularly useful stability such that the DMTS remains stable for therapeutic use at the identified time periods. The compositions are therefore particularly suitable for use in autoinjectors.
Claims26
A dimethyl trisulfide composition comprising a mixture of:
- dimethyl trisulfide at a level of 10 wt. % to 20 wt. %;
- sodium chloride at 0.1 wt. % to 10 wt. %;
- one or more surfactants present at a level of 22 wt. % to 45 wt. %;
- the balance water and wherein said composition optionally includes an organic solvent at a level of up to and including 5000 ppm;
- and
- wherein said dimethyl trisulfide composition, when stored at a temperature of 20° C. to 25° C. in a sealed ampoule provides that at least 90% or more by weight of the dimethyl trisulfide remains available for therapeutic use for a period up to and including 26 months.
A method of treating cyanide intoxication in a subject comprising administering to a subject who would benefit from such treatment an organic-solvent free composition comprising:
- dimethyl trisulfide at 10 wt. % to 20 wt. %;
- sodium chloride at 0.1 wt. % to 10 wt. %;
- one or more surfactants present at a level of 22 wt. % to 45 wt. %;
- the balance water wherein said composition optionally includes an organic solvent at a level of up to and including 5000 ppm and wherein said dimethyl trisulfide composition, when stored at a temperature of 20° C. to 25° C. in a sealed ampoule provides that at least 90% or more by weight of the dimethyl trisulfide remains available for therapeutic use for a period of up to and including twenty-six moths.
An autoinjector comprising an injection volume of 0.15 ml to 5.00 ml, said autoinjector configured to deliver a dose of a composition upon activation by an individual, the composition comprising,
- dimethyl trisulfide at a level of 10 wt. % to 20 wt. %;
- sodium chloride at 0.1 wt. % to 10 wt. %;
- one or more surfactants present at a level of 22 wt. % to 45 wt. %;
- the balance water, wherein the volume of the composition is in the range of 0.15 ml to 5.00 ml and an organic solvent is optionally present at a level of up to and including 5000 ppm;
- wherein said dimethyl trisulfide composition, when stored at a temperature of 20° C. to 25° C. in a said autoinjector provides that at least 90% or more by weight of the dimethyl trisulfide remains available for therapeutic use.
A composition comprising a mixture of:
- dimethyl trisulfide at a level of 15 wt. % to 50 wt. %;
- one or more surfactants at a level of 20 wt. % to 65 wt. %;
- an organic co-solvent present at 10 wt. % to 55 wt. %;
- water present at a level of 10 wt. % to 55 wt. %.
A method of treating cyanide intoxication in a subject comprising:
- administering to a subject who would benefit from such treatment a composition comprising:
- dimethyl trisulfide present at a level of 15 wt. % to 50 wt. %;
- one or more surfactants present at a level of 20 wt. % to 65 wt. %;
- an organic co-solvent present at a level of 10 wt. % to 55 wt. %;
- and
- water present at a level of 10 wt. % to 55 wt. %.
An autoinjector comprising:
- an injection volume of 0.15 ml to 5.00 ml, said autoinjector configured to deliver a dose of a composition upon activation by an individual, the composition comprising:
- dimethyl trisulfide present at a level of 15 wt. % to 50 wt. %;
- one or more surfactants present at a level of 20 wt. % to 65 wt. %;
- an organic co-solvent present at a level of 10 wt. % to 55 wt. %;
- water present at a level of 10 wt. % to 55 wt. %;
- and
- wherein the volume of the composition is in the range of 0.15 ml to 5.00 ml.
A composition comprising a mixture of:
- dimethyl trisulfide present at a level of 15 wt. % to 50 wt. %;
- one or more surfactants present at a level of 20 wt. % to 75 wt. %;
- an organic solvent present at a level of 10 wt. % to 65 wt. % and wherein said composition optionally contains water at a level of up to 5000 ppm.
A method of treating cyanide intoxication in a subject comprising:
- administering to a subject who would benefit from such treatment a water free composition comprising:
- dimethyl trisulfide present at a level of 15 wt. % to 50 wt. %;
- one or more surfactants present at a level of 20 wt. % to 75 wt. %;
- an organic solvent present at a level of 10 wt. % to 65 wt. % and wherein said composition optionally contains water at a level of up to 5000 ppm.
An autoinjector comprising:
- an injection volume of 0.15 ml to 5.00 ml, said autoinjector configured to deliver a dose of a water free composition upon activation by an individual, the composition comprising:
- dimethyl trisulfide present at a level of 15 wt. % to 50 wt. %;
- surfactant present at a level of 20 wt. % to 75 wt. %;
- an organic solvent present at a level of 10 wt % to 65 wt. %;
- wherein the volume of the composition is in the range of 0.15 ml to 5.00 ml and wherein said composition optionally contains water at a level of up to 5000 ppm.
Dependencies are inferred from the claim text.