taking desloratadine for my allergies make me feel tired?

I cant fight the impression that I am tired all the time lately. I understand to fell like that when I am working all the time or when I am under some kind of a stress. But I dont have to much work at my workplace and I still feel like was digging all day long. I am taking some desloratadine for my allergies, could it be the reason of my tiredness?

Yes, Clarinex (desloratadine) is usually the cause of tiredness. It is one of the most common side effects. It is not too dangerous except if it passes some limits of normal and endangers your life. You can check with your doctor should you continue taking it or to switch to some other medicine. I would advise you to avoid driving if you feel tiredness, it could get you in lot of troubles.