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.
1 This publication summarizes the exemptions and exclusions from sales and use tax in effect when the. publication was printed (as noted on the front cover). However, statutory or regulatory changes may. have occurred since that time. If there is a conflict between the text in this publication and the law, the.