USES: This medication is an antihistamine that treats symptoms such as itching, runny nose, watery eyes, and sneezing from  hay fever  and other allergies. It is also used to relieve itching from hives. Loratadine does not prevent hives or prevent/treat a serious allergic reaction (e.g., anaphylaxis). Therefore, if your doctor has prescribed epinephrine to treat allergic reactions, always carry your epinephrine injector with you.
Arteries carry blood away from the heart and veins carry blood towards the heart. The vena cava brings deoxygenated blood from the body towards the heart. However, the coronary artery carries oxygenated blood to the myogenic heart muscle.
Usually arteries carry oxygenated blood, because they are carrying blood away from the heart out to the tissues. (an easy way to remember this, artery=away). veins usually bring the blood from the tissues back to the heart/lungs to be oxygenated again.Source(s): I'm a nurse.sually arteries carry oxygenated blood, because they are carrying blood away from the heart out to the tissues. (an easy way to remember this, artery=away). veins usually bring the blood from the tissues back to the heart/lungs to be oxygenated again. Source(s): I'm a nurse.