allergies
"Extremely effective. I have had horrible allergies for years, and this was the only thing that worked for me. Make sure you take it an hour or so before you go to bed though, the drowsiness side effect is huge if you don't. After my allergies were under control, I was able to switch to half a pill and that helped with the morning grogginess a lot. But it gave me my health back, so I'm grateful!"