Like Helvetica, Arial is a basic font that is easy to read. Twitter and Google both use Arial for all their copy and content. The Huffington Post also uses Arial on its front page but uses the Georgia font for full articles. Arial's origins actually stem from the aforementioned standard font, Helvetica.
Albuterol can have a stimulatory effect, increasing the blood pressure and heart rate. It is possible that some people may abuse albuterol for its stimulant properties, although most people simply feel jittery from albuterol overuse.
Albuterol is a beta 2 agonist that stimulates the muscles in the airways to open up if they are in spasm. Typically the medicine is inhaled via a meter dosed inhaler (mdi), or a nebulizer and also available as a oral liquid.