I was prescribed zpack for chlamydia and was told to take as directed. so i took 1500mg over four days. this should cure it ?

Probably: Although the way you took the Azithromycin is not the recommended treatment for chlamydia, it is probably adequate. You need to get rechecked to document a cure. The partner also needs treatment, you should not have sex with him until he is.

Most likely: Z Pak (azithromycin) is one of the treatments offered for chlamydia. It is FIVE day course of antibiotics called Azithromycin. 500mg on day 1, followed by 250 mg for 4 additional days. As long as it was taken as prescribed, and your partner was also treated to avoid the risk of re-infection, it should be an adequate treatment. However, a "test of cure" to check to make sure that you're 100% cured is advised.