Guaifenesin is mostly useless and only approved so that they can stick it next to your dextromethorphan as an emetic to stop you from abusing it. I was vomiting

Guaifenesin is mostly useless and only approved so that they can stick it next to your dextromethorphan as an emetic to stop you from abusing it. I was vomiting from COVID and I was incredibly pissed off when I found out it was actually just because they poisoned my cough syrup on purpose.