Provided are methods, compositions, systems, and kits for treating metabolic syndrome or a disorder associated with metabolic syndrome, e.g ., obesity, dyslipidemia, and/or a diabetic condition, comprising administering systemically to a subject one or more compounds of the Formula (I) and/or ( II ): or a pharmaceutically acceptable salt, hydrate, solvate, stereoisomer, polymorph, tautomer, isotopically enriched derivative, or prodrug thereof, wherein - - - - - - , L, R 1 , R 2 , Z, X, A and B are defined herein.