To amend titles XVIII and XIX of the Social Security Act to provide for continuity of Medicare prescription drug coverage for full-benefit dual eligible individuals, for Medicare prescription drug coverage of benzodiazepines and off-label uses of certain prescription drugs and biological products, for optional Medicaid coverage of Medicare prescription drug cost-sharing for full-benefit dual eligible individuals, and for authorization to the Secretary of Health and Human Services to waive certain determinations denying Medicare prescription drug coverage.

Amends part D (Voluntary Prescription Drug Benefit Program ) of title XVIII (Medicare) of the Social Security Act (SSA) to provide for continuity of coverage of prescription drugs under Medicare prescription drug plans for full-benefit dual eligible individuals.

Provides for Medicare prescription drug coverage of benzodiazepines and of off-label uses of prescription drugs and biologicals.

Amends SSA title XIX (Medicaid) to permit state Medicaid programs to cover Medicare prescription drug copayments for full-benefit dual eligible individuals.

Amends SSA title XVIII to authorize the Secretary of Health and Human Services to waive denial of Medicare prescription drug coverage.