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.

SB 436 requires Tennessee's Medicaid program (TennCare) to consider using biosimilar drugs - cost-saving, FDA-approved versions of biologic medications - as part of its drug coverage strategy. It also allows health insurers to require patients to try a biosimilar before covering a branded drug, and directs the state's pharmacy advisory committee to factor biosimilar use into recommendations for the state drug formulary. The bill amends multiple Tennessee Code sections governing drug coverage, pharmacy practices, and formulary decisions. These changes aim to reduce prescription drug costs by expanding the use of biosimilars while maintaining FDA safety and efficacy standards. The bill directly affects TennCare patients, health insurers, and the state's drug formulary decision-making process.