CWE question

[helipenie]

Hello there,

Swim is opiate naive and has 3 questions about CWE of tablets that contain:

Paracetamol 500 mg

Caffeine 50 mg

Codeine phosphate sesquihydrate 10 mg

So, swim wanted to know what is sesquihydrate and is it maybe toxic at higher doses?

Also swim wanted to know if there is a way to remove the caffeine from the mixture? Wiki says that there is a way to extract the caffeine by passing the mixture through activated charcoal, the caffeine will be removed, but I couldn't find any description how to do it...

And also swim wanted to know what should be a dose of codeine for first time?

Thanks,

helpenie