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.
Where Does Light Come From? Most people know where light comes from. It comes from the sun, from light bulbs, from televisions, but why it comes from these objects is a mystery to many. No matter what the source, light is generally produced via the same mechanism: electrons changing their orbits around nuclei. How does this work?