Do you have experience crossing the Canada-US border and flying to international destinations from Canada with Adderall XR?

I have several trips planned out over the next year and I’m looking for advice based on formal legal requirements and personal anecdotes in regards to crossing into the US from Canada and flying to Mexico and Europe from Canada with 20 mg of prescribed Adderall XR.

I have a 30-day supply with me that’s prescribed by my family doctor inside its original packaging with my legal name printed on the prescription label matching my driver’s license and passport.

Trip specifics:

1. Fly from Canada to Iceland, then from Iceland to UK, then fly back from Germany to Canada.
2. Fly from Canada to Mexico (and back).
3. Drive from Quebec, Canada into Vermont, USA (and back).

Is there anything I need to do/know before crossing these international borders?