I started on vyvanse after 6 months on dex(which was great!!) because it's easier to travel with. Long story short I was at my wits end with it. I tried everything electrolyte tabs, taking it before food, taking it after food, trying with different combinations of protein, carbs and fats, splitting the dose, increasing and decreasing dose etc but nothing got it to work consistently. It barely lasted 3/4 hours and made me exhausted.

But I ran out out my electrolytes and decided to try some from Amazon. The only ones available next day were labelled as extra strength and I was scared but bought them anyway. I tried them last night before taking my usual final third of my split dose, thinking nothing of it but my god an hour later I felt like I did on dex but with slightly more mental clarity. I took it really late because it usually doesn't last long but I was up pretty much all night.

I thought this would be a good time to test it on minimal sleep as it's meant to not be effective without adequate sleep. Also wanted to see if it would work as one dose rather than splitting. Added the Amazon electrolyte tablets to my vitamin stack and had my 70mg in one dose and I'm shocked its been 7 hours and it's still working???? Before I could barely rely on it for 4/5 and that's if I split it and drank a shit tonne of coffee.

It explains a lot because I've always had oily skin and not I'm finding it's really really dry. I put on three moisturiser but never thought I might be really dehydrated as I drink a lot of water. I'll update after a week or so if anyone is interested

TL;DR Believe the hype about electrolytes helping to make your meds work better. Even if you're taking them make sure they're not shitty as you might still be super dehydrated like I am.