Upon enrollment, during transition to a HealthChoice Part D plan, or when a physician prescribes a new drug that is non-formulary, you can be authorized to receive a one-time supply of a non-covered medication. This transition supply, limited to 34 days of medication, is intended to help you make a successful transition to a formulary medication. This temporary supply will be provided, when necessary, prior to beginning or completing the process for prior authorization for a non-formulary medication. For information on how to get a transition supply of medication, contact Medco toll-free at 1-800-590-6828. TDD users call 1-800-716-3231.