Drugs, Prescription - As enacted, adds mandating the use of biosimilar drugs as a cost-saving measure the bureau of TennCare may implement; adds that a health carrier, health benefit plan, or utilization review organization may require a patient to try a biosimilar product prior to providing coverage for the equivalent branded prescription drug; requires the TennCare pharmacy advisory committee to consider as a factor the use of biosimilar drugs in the committee's recommendation to the bureau of TennCare on any drugs to be added to the state preferred drug list. - Amends TCA Title 4; Title 53; Title 56; Title 68 and Title 71.