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.
As retirement accounts, the Roth IRA and the TSP Roth have annual investment limits. The TSP Roth has a significantly higher investment limit than the Roth IRA. Investors will be able to put $16,500 in a TSP Roth, whereas a maximum of $5,000 can be put into a Roth IRA in 2011. A TSP Roth has a higher catch-up provision as well.
Withdrawal Rules. One major difference between traditional IRAs and Roth IRAs is when the savings must be withdrawn. Traditional IRAs require you to start taking required minimum distributions (RMDs) at age 70 1/2. Roth IRAs, on the other hand, donât mandate withdrawals during the ownerâs lifetime.