Search the UMP Preferred Drug List

Get information about your drug

UMP Preferred Drug List

Use the UMP Preferred Drug List (PDL) to find:

  • The tier of a drug
  • Whether a drug is a specialty drug
  • If a drug requires preauthorization or is subject to other limits
  • If a drug has less expensive alternatives

The UMP PDL may be updated at any time. Changes are posted online at least once a month.

Be sure to check the tier of a drug before you fill a prescription, especially for a new drug, by using the UMP PDL or by calling Washington State Rx Services at 1-888-361-1611.

Not all drugs are listed in the UMP PDL. If your drug isn't listed, call 1-888-361-1611.

Other prescription drug tools

Use the Prescription Price Check tool to see how much you'll pay for covered prescription drugs.

Log in to your pharmacy account to check how much you've paid of your prescription drug deductible and find your claims history.

How does UMP decide which drugs are preferred?

As a state-sponsored health plan, UMP Plus must follow coverage recommendations made by the Washington State P&T Committee, which consists of Washington health care professionals, including physicians and pharmacists. The UMP Preferred Drug List includes these coverage recommendations.

Not all drug classes are reviewed by the Washington State P&T Committee. For these drugs, the Washington State Rx Services P&T Committee makes coverage recommendations for UMP's review and final determination of a drug's tier level.

For the plan to approve a drug for you, it must be medically necessary for your health condition. Your provider may prescribe a drug or drug dose that is not medically necessary.

For more information on the P&T Committee, see the Prescription Drug Program's webpages.


Washington State Rx Services
Phone: 1-888-361-1611
TRS: 711