My brother doesn't even use the dosing cup, he just puts bottle to his mouth and drinks it like drinking beer or soda. And I read something about 400 mgs. of Guafenisen, I don't know if that's the entire bottle, or what.
Is he taking it for a cough or is he just abusing it? Here is what the literature says about it. Immediate release formulation: 200 to 400 mg orally every 4 hours as needed, not to exceed 2.4 g/day
The problem with what he's doing is that he might not be getting enough to help him, the dose is a guess at best.
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