I've taken a single dose of zithromax for chlamydia. Would diarrhea and vomiting effect it's effectivness. How long does it take for the medicine to work?
If you immediately start vomiting as soon as you take a dose of Zithromax, then you probably lost the full effect. If it stayed down for 30-45 minutes then you probably got most of the dose. If you dont have really severe diarrhea then it probably was able to be absorbed.
I had vomited and diarrhea about 3-4 hours later.