Keytruda is given by intravenous (IV) infusion every 3 weeks until disease progression, unacceptable toxicity, or up to 24 months. It is currently a non-preferred brand, specialty medication on standard NPS formularies and carries an average wholesale price (AWP) of $515.79 per day. FDA Safety Update
If something gets in your eye and irritates it, your tear glands make more tears to try and flush the irritant away. These are reflex tears. If something makes you sad or extra happy, your tear glands produce emotional tears.
The beginning of a river is called the source. The source of a  river usually comes from an elevated platform with a spring such as  a mountain, hill, or glacier. A spring iâ¦s natural water that flows  out from the ground. The source could also be a lake where streams  of snow or rain water have collected.