With the objective of obtaining slow-acting isoniazid derivatives, of poten
tial use as chemoprophylactics or chemotherapeutics in tuberculosis, the mi
celle-forming copolymer of poly(ethylene glycol)-poly(aspartic acid) prodru
g with isoniazid was synthesized. The derivative obtained was found to be a
ctive in Mycobacterium Il(tuberculosis culture, with a minimal inhibitory c
oncentration (MIC) 5.6 times lower than that of the tuberculostatic drug.