I was perscribed Guaifen along with an antibiotic. I have done nothing but cough for a week. At bed time, I wake up every other hour. My mouth is very dry and my heart is beating out of my chest. I have little bumps between my fingers that itch a little bit. I'm very headachy and dizzy. I feel like I'm buzzed and shakey. I can say I will not take this drug again!