Freebase(0.00 / 0 votes)Rate this definition: Phenytoin sodium is a commonly used antiepileptic. Phenytoin acts to suppress the abnormal brain activity seen in seizure by reducing electrical conductance among brain cells by stabilizing the inactive state of voltage-gated sodium channels.
Indiana Tax Rates. The Indiana (IN) state sales tax rate is currently 7%. Because of its single state tax rate, Indiana is one of the few states that does not require extensive maintenance. But there are numerous local levels of tax rates which must be monitored. Amazon.com owns and operates several fulfillment centers in Indiana.
Indiana's income tax rates were last changed two years prior to 2015 for tax year 2013, and the tax brackets have not been changed since at least 2001. Indiana has a flat income tax rate which applies to both single and joint filers.