The insomnia effect is no joke! It’s an amphetamine.
I used to take 24-hour allergy medicine with pseudoephedrine, and it took me years to realize it was the thing that was giving me insomnia during allergy season—for years I thought I just had periodic bouts of intense insomnia.
In college I told the clinic I wanted anything but Sudafed (joke on campus was they’d give you Sudafed for a broken arm). Gave me Sudafed anyway.
First 100% sleepless night in college. And the only sleepless night that wasn’t having too much fun or stressing over a final exam. Trash can.