They are probably still working, but you’ll never get the same rush of excitement/euphoria that you felt in the first few months.

The euphoria is a negative side effect in my opinion. That’s what leads to abuse and addiction. Don’t chase it!

I’m sure you’ve heard all this before, but make sure you’re getting enough sleep and exercise. Also, avoid acidic drinks in the morning like coffee and OJ when taking your medication. The acid can break down some of the medication before your body has a chance to absorb it.