Nasal Congestion
"Claritin D 24 hour works well for sinus issues. However the side effects that I experienced supercedes the effectiveness  of the drug; decreased urinary stream, cloudy urine, straining to push out urine from bladder,  Insomnia, headache, increased heart rate. All symptoms lasted approx 24 hours. Inconvenient to purchase, have to show drivers license as I found out its the main ingredient is used to make  crystal meth."