The effect of albendazole was studied in 12 patients with cystic hydat
id disease (CHD) of the liver. Six patients received albendazole conti
nuously for 6 months, while 6 patients received albendazole for 6 cour
ses of 4 weeks with a 2 week drug-free interval between cycles. The co
ntinuous therapy proved successful, with stable involution at the foll
ow-up at 24 months, while the patients treated with discontinuous ther
apy showed improvement or relapse. In our experience, continuous thera
py was more effective and can be considered to be a suitable alternati
ve or percutaneous therapy in uncomplicated hydatid liver disease, as
an initial treatment.