Taking stimulant medication overseas

I am unfortunately in the situation where I completely forgot to get a letter from my psychiatrist re: my stimulant medication.

I’m in two minds about whether to take it or not. If I take it, it will be in the original packaging with my full name, dosage, and name of my psych. But just no letter.

Anyone been in this situation and can provide some advice?

Edit to add - I’m travelling to Ireland with stopovers in Jakarta and Turkey. I’m planning on taking some meds in my carry on AND my check through.