Well you know me, always got the obscure questions (normally smoking a little before they come to me though lol)
I have been looking into it but no luck finding a solid answer, most people are of the understanding they would negate each other to an extent but with xanax working for more mental anxiety I figured it might just work to make this viable
If you take a Medium Coffee from the big coffee chain. It has 100mg. Shot of espresso 100mg more. To get your LD50 (The value of a substance would kill a average human 50% of the time disregarding extreme tolerance or other factors). That'3 300mg and that is about equivalent to a 100 cups of a medium coffee with a shot of espresso. Your stomach won't hold that much volume and shaky anxious a disaster.
Now Caffeine pills (Looks like the US Food and Drug Administration has capped it at 200mg max for a pill) gets us to 88 pills to round up and say 100. That's the low end. So 200, 200mg Caffeine pills. Now we need something from you puking and your heart racing at such a pace and chest pain it might not even give you a heart attack just a lot of pain, anxiety, tight chest, unless you have an arrhythmia or heart issues. This will be painful. You might die from dehydration first and possible psychotic effects.
So we get to pure Caffeine powder which states are trying to ban. You're looking at 5-10g of pure powder maybe you mix it in a drink I'm not sure because this method has so many issues. Your body is going to wired and in pain.
Death from it is extremely rare as it's painful, difficult, and unreliable. And most people who do die from per-existing heart or blood vessel issues.
Also Caffeine stats onset at 5-10minutes. Benzo's closer to 20-30 minutes.
Now your Benzo's unless these are Research Chemicals with extreme strength with an average dose of .5 micro grams. You would need ? I don't have a clear answer maybe 20 or more. This is because the Pure Caffeine doesn't create a offset effect the caffeine actually overpowers the Benzo's and actually makes them weaker (as Researchers found with with Valium and Klonopin where you would need a insane amount it's not worth calculating. Maybe if you have something to stop the enzyme from metabolizing the caffeine if could work. Also unless you are taking super RC benzos which the caffeine will weaken you will not die from benzos. You'd need Ten's to thousands of Clonopin. Thats why Barbituates are gone. You might die but not from the substances, I assume something in your lungs or brain is going to kill you first in a horrible way.
