Salbutamol was the first selective Î² 2 -receptor agonist to be marketed in 1968. It was first sold by Allen & Hanburys (UK) under the brand name Ventolin, and has been used for the treatment of asthma ever since. It was approved for use in the US by the Food and Drug Administration (FDA) in May 1982. The drug is usually manufactured and distributed as the sulfate salt salbutamol sulfate. Salbutamol is mostly taken by the inhaled route for direct effect on bronchial smooth muscle.
USPS Priority Mail Express is a guaranteed way to send documents and packages to a destination overnight or in one to two days on any day of the year, including Sundays and holidays. If the US Postal Service doesn't deliver your package on time, they will refund the full delivery cost to you.
I think Express Mail (overnight or 2-day service) should be in a class by itself, but eBay lumps it in with FC and PM as expedited.. By UPS or FedEx, the match is any of several air services; 2nd Day and 3rd Day Air equal FC and PM. Next Day Air matches Express Mail.