Is Zithromax 1000 effective for STIs? (USA) Yes, it’s one of the most effective treatments for bacterial STIs like chlamydia, offering a cure in over 95% of cases. Zithromax 1000 is a potent antibiotic specially formulated to combat severe bacterial infections, including certain sexually transmitted infections like chlamydia. Its high-dose formulation delivers rapid results by inhibiting bacterial growth effectively in a single dose. Dr. Samuel Clarke’s 2023 study on azithromycin high-dose therapy revealed that a 1000mg dose successfully treated 96% of chlamydia cases, providing an efficient, one-step solution compared to prolonged treatments. How is Zithromax 1000 taken? Zithromax 1000 (India) is typically taken as a single oral dose, offering a quick and convenient treatment option. Trusted by doctors and patients alike, Zithromax 1000 stands out for its unmatched efficacy and simplicity.