[lambda_tango]

Part of amphetamine's effects include an increase in energy during the day, which helps make you tired in the evening when it wears off.

Sometimes instant release (Adderrall or Dexedrine) is prescribed to supplement a time release version, particularly if you experience "the 5 o'clock crash".

If your on something like Vyvanse, you might have to up the dose after months, possibly even years, as your tolerance builds. Supposedly it's possible to reach a dose that balances against your metabolism, and you won't need to increase it again.

I found that, at a high enough dose, my jaw started clenching quite a bit, and I had the occasional heart murmurs. I do drink the equivalent of 3-4 cups of coffee on a regular basis.

If anyone experiences those side effects, I highly recommend chelated magnesium. Worked wonders for me.

[bluefirebrand]

Thanks for the info! I thought for a while that it was causing tension in my neck and shoulders but that has eased off which is a relief.

> If your on something like Vyvanse, you might have to up the dose after months, possibly even years, as your tolerance builds.

I think I might be reaching that point, it's nice to hear that it's normal and expected. I am on the lowest dose of Concerta that my doctor can give me and it was great for a while but I feel like it's less effective.