allergies
"I took this pill at bedtime twice and it kept me awake until after 2:00 a.m.  I woke up with worst symptoms than I had before I took the pills  When I woke up I was stuffed up and I stayed that way all day long.  I also had lots of coughing - unlike my normal cough that is due to post nasal drip. I also have a bad sore throat.  On both Saturday and today I have tiredness and I am unable to function.  I will go back to my normal medicine in the morning.  These pills were a waste of money."