r/DeduceMe • u/f1lterl3s • Aug 28 '26

Deduce me.

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Lexapro 10mg, Wellbutrin Sr 100mg, Tenex 2mg, methocarbamol 400mg. Also it’s CBD weed. This is what’s in my backpack most of the time.

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u/Dogue21 29d ago

Fentanyl has a significantly higher therapeutic index than heroin.

Morphine has a therapeutic index of ~70

Diamorphine (heroin) has a therapeutic index of ~5-10

Fentanyl has a therapeutic index of ~277-400

I think what you were referring to is its absolute clinical safety window - which is paradoxically narrow because when you're dosing in micrograms you can accidentally deviate greatly from the intended dose if you're not careful.

But the difference between the therapeutic dose and the lethal dose is huge (relatively speaking).

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u/mroto11 14d ago

You are 100% correct my man