I was asked to give azithromycin I.V. to a 7 week old. After much discussion, the antibiotic was changed. What is the youngest age of anyone giving azithromycin I.V. to. Also, there was one source which allowed this I.V. but there were also many sources which did not recommend it. So here lies the problem. I have never given it to anyone less than a teenaager. Has anyone anywhere given it to anyone less than a teenager and what precautions are there?