long term courses in US after Pharmacy other than MS

Hi, I finished my M.Pharm in pharmaceutics in india with 79% inthe year 2014 iam living in california. Now i am thinking to do some course so that i can work in US. I dont have any work experience before..plz suggest me what are the courses available other than MS program wichich is a long term. Your information will help me alot..thanking you.

- nishithareddy