A student pilot I know had been on antidepressants about a year ago and
had supplied a letter with his AME exam explaining that he was no longer
on any meds and had no adverse effects as a result of that. The AME
issued the 3rd class medical.

The FAA sent him a letter saying that they weren't denying the medical,
but they wanted the exact dates. He wrote back giving the dates and they
recently wrote back saying that they were satisfied, but reminding him
that taking medicals or having impairments can disqualify him from flying.

--Marc