Vivarin vs generic caffeine pills. Why does Vivarin hit so much harder?
I’m confused about caffeine pills.
Vivarin (200 mg), pic related and as of recent drug of choice works way better for me than off brand tablets. Feels like ~8 hours of energy. Then a big crash.
Tried many off-brand caffeine tablets, even double dose. Mostly just headaches though and not the same “clean” alertness.
I assumed quality control or additives or what not. But it’s literally just caffeine, right? Do other people see this? Could tablet fillers / how fast it dissolves matter? Or is this just tolerance + timing + placebo?
What’s the actual mechanism here?
Vivarin is the first time I understand why some people call it poor people's meth...
Add pic of ingredients
Active Ingredients: Caffeine (200 mg), Alertness Aid.
Inactive Ingredients: Carnauba Wax, Colloidal Silicon Dioxide, Croscarmellose Sodium, D&C Yellow 10 Aluminum Lake, Dicalcium Phosphate Dihydrate, FD&C Yellow 6 Aluminum Lake, Hypromellose, Magnesium Stearate, Microcrystalline Cellulose, Polyethylene Glycol, Polysorbate 80, Starch , Titanium Dioxide
So unless one of those "inactive ingredients" is actually not so inactive (I don't know what they all are), it sounds like probably quality control and/or timing and/or placebo.
Off-brand caffeine tablets are unregulated, but Vivarin is FDA-approved. My guess is it's mostly down to quality / quality control.
Tolerance wouldn't factor in if you're taking supposedly-equal doses of other brands yet experiencing a weaker effect.
placebo effect?