Method of treating hair loss using sulfonyl thyromimetic compounds

A method of treating hair loss comprising administering a composition comprising a cardiac-sparing compound characterized by the structure:

• and pharmaceutically acceptable salts, hydrates, and biohydrolyzable amides, esters, and imides thereof, wherein:
• R1 is —(CH2)n(CHNR7R8)mC(O)R9;
• n is an integer from 1 to 3;
• m is an integer from 0 to 1;
• R3 and R5 are each, independently, selected from the group consisting of chlorine, bromine, iodine, and —CH3;
• R7 and R8 are each, independently, selected from the group consisting of hydrogen and C1-C4 alkyl;
• R9 is selected from the group consisting of hydroxy, C1-C4 alkoxy, and —NR7R8;
• R31 is selected from the group consisting of hydrogen, chlorine, bromine, iodine, C1-C4 alkyl, C4-C6 cycloalkyl, C1-C4 haloalkyl, C4-C6 halocycloalkyl, and —CH(R10)Ar;
• Ar is selected from the group consisting of 5-hydroxypyrid-2-yl, 6-hydroxypyrid-3-yl, 6-hydroxypyridazin-3-yl, 6-methoxypyridazin-3-yl N-oxide, and 6-hydroxypyridazin-3-yl N-oxide;
• R10 is selected from the group consisting of hydrogen and C1-C4 alkyl;
• and
• R4, is selected from the group consisting of hydroxy and C1-C4 alkoxy.