Guaifenesin / pseudoephedrine
"I can't seem to see the same results as others. I've been to the urgent care in my area recently for bronchitis and after giving me a nebulizer treatment they sent me on my way with suggestion of Mucinex.
Man. This stuff works so well, I haven't seen any issues with sleep or feeling jittery. The package does mention to take with a full glass of water, and to stay hydrated. Maybe that's something the others are missing?"