pseudoephedrine. The ingredient in Sudafed, Nyquil, etc that actually works. You'll usually need to go to the pharmacy counter to get it and show ID. They track

pseudoephedrine. The ingredient in Sudafed, Nyquil, etc that actually works. You'll usually need to go to the pharmacy counter to get it and show ID. They track how much each person gets because some folks were using it to make meth a while back. The replacement in the OTC Sudafed, etc out one the shelves, phenylephrine, doesn't work.