Crystalline solids of mek inhibitor n-((r)-2,3-dihydroxypropoxy)-3,4-difluoro-2-(2-fluoro-4-iodo--phenylamino)-benzamide and uses thereof

A capsule comprising:

• a. about 1 mg of N—((R)-2,3-dihydroxypropoxy)-3,4-difluoro-2-(2-fluoro-4-iodo-phenylamino)-benzamide of Formula (I)
• wherein the N—((R)-2,3-dihydroxypropoxy)-3,4-difluoro-2-(2-fluoro-4-iodo-phenylamino)-benzamide constitutes about 0.1 wt/wt % to about 7 wt/wt % of the capsule;
• b. about 50 wt/wt % to about 98 wt/wt % of one or more diluents;
• c. about 1 wt/wt % to about 10 wt/wt % of one or more disintegrants;
• and
• d. about 0 wt/wt % to about 5 wt/wt % of one or more lubricants.

A capsule comprising:

• a. about 2 mg of N—((R)-2,3-dihydroxypropoxy)-3,4-difluoro-2-(2-fluoro-4-iodo-phenylamino)-benzamide of Formula (I)
• wherein the N—((R)-2,3-dihydroxypropoxy)-3,4-difluoro-2-(2-fluoro-4-iodo-phenylamino)-benzamide constitutes about 0.1 wt/wt % to about 7 wt/wt % of the capsule;
• b. about 50 wt/wt % to about 98 wt/wt % of one or more diluents;
• c. about 1 wt/wt % to about 10 wt/wt % of one or more disintegrants;
• and
• d. about 0 wt/wt % to about 5 wt/wt % of one or more lubricants.