The duration of treatment varies depending on the specific infection being treated and the age of the patient It should be noted that Zenithro is not always prescribed for a threeday period In the majority of cases involving bacterial infections a single dose of 500 mg is administered for a span of three days Another option is to take 500 mg on the first day followed by 250 mg once daily from the second to the fifth day However there are instances where the treatment regime may differ For example in the case of genital ulcer disease a single dose of 1 gram is given It is crucial to adhere to the treatment plan prescribed by your healthcare provider in order to ensure optimal efficacy and avoid any potential complications Following the prescribed regime will help in effectively combating the infection and promoting a speedy recovery