The macroenvironment consists of forces that originate outside of an organization and generally cannot be altered by actions of the organization. In other words, a firm may be influenced by changes within this element of its environment, but cannot itself influence the environment.
What is Tysabri? Tysabri (natalizumab) is a prescription medication for adult patients with relapsing forms of multiple Sclerosis. It is shown in clinical studies to slow the worsening of disability caused by MS and decrease the number of flare-ups, or relapses. Tysabri may also improve mental function in some patients.
I am starting to believe that Tysabri costs whatever your insurance or Medicare is willing to pay the facility that gives it to you. My hospital infusion center just charged $9,700 for my 35th infusion of Tysabri. This is according to the EOB(Explanation fo Benefits) that I just received. Medicare paid (believe it or not) $9,700 and my Supplemental paid $500. So I did NOT pay a cent-!