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 maximum marginal income tax rate is the 1st highest in the United States, ranking directly below Indiana's %. You can learn more about how the Indiana income tax compares to other states' income taxes by visiting our map of income taxes by state.