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.
State Income Tax Rates. Indiana State Income Tax Rates - 2017 State Taxes Guide. While the federal tax rates are the same for all fifty states, the various states are left to determine what their state income tax rate should be and those numbers are all over the map. Latest Indiana State Income Tax Rates Forum Posts.