Rituximab (Rituxan and MabThera) is a drug used to treat rheumatoid arthritis that has not improved with other types of medications, as well as certain forms of vasculitis. It works by turning off a part of the immune system that is not working properly in autoimmune diseases.
For the purpose of this sales tax exemption, âdirectlyâ means having an immediate effect on an item or in an activity, without an intervening, ancillary or prior effect.
Top. Does an organization's Virginia retail sales and use tax exemption apply to other taxes such as Corporate Tax, Withholding Tax, and Utility Tax? No. The exemption applies only to the sales tax charged on the purchases of tangible personal property and/or taxable services purchased by an organization.