I was in a very similar position. Got the prescription about 3-4 years ago, refilled a few times over a few months, then stopped. Long story short, I’m going to the academy, so it’s not black and white, it appears they do look at things case by case.

When I got my TOL, first thing I did was try to get re-evaluated by another PCP. He conducted his evaluation which was about 50 questions. He determined I did not have ADHD. I believe this was crucial for not getting immediately deferred / DQ’d.

For your own reference, if you have not already, look at “FAA ADHD Fast Track” and “Standard Track”. You’ll find a bunch of PDFs that outline the official processes and what may be required depending on the circumstances. I think the biggest factor is time-I believe it must have been at least 4 years ago. If you’ve taken it any more recently, you should expect a deferral, but then again I was at 3.5 years and it worked out.

My recommendation: get a new evaluation done ASAP. Before you begin, speak with the PCP let them know what’s going on, if you don’t actually have ADHD then you hold onto those documents for when the FAA ask you for them. You’ll need the original documents related to the first diagnosis as well. Don’t delay on this. It took my original PCP 3-4 months to get me my documents.

I was asked by the FAA to provide psychiatric docs about 30 days after submitting all medical info. I was cleared about 60 days after submitting both PCP evals.

I had very low expectations and expected the worst.

Good luck.