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Rx Collaborative

The Rx Collaborative (RxC) is the largest pharmacy coalition in the U.S.

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We represent over 425 employers with approximately $6 billion in drug spending and 5.2 million members. Our collective purchasing power and expertise allow us to deliver financial savings, transparency in pricing, pharmacy benefit manager (PBM) oversight and innovative programs and services unsurpassed in today's marketplace.

The Rx Collaborative offers arrangements with four premier pharmacy benefits managers (PBMs):

  • CVS Caremark
  • Express Scripts
  • Optum Rx
  • Capital Rx

With our highly competitive deal terms and cutting-edge clinical and program management, clients can achieve significant savings that will immediately impact the bottom line.

Employer savings

RxC deal terms, along with an active pharmacy management strategy, can save employers up to 25% of current drug spend.

Insights from experts

RxC clients have access to a team of dedicated pharmacists, actuaries, health management and pharmacy consultants, health care technology specialists and pricing experts.

Account management

We advocate on behalf of our clients so that they receive superior account management service and issue resolution support.

Exclusive access

Employers receive exclusive access to best practices, market-leading programs and premier services.

Program flexibility

Employers maintain program flexibility to select the right design, formulary and clinical management approaches for their organizations.

If your company has more than 1,000 employees and is eligible for a PBM contract renewal, you may be qualified to receive a free Rx Collaborative savings analysis. If you are interested in receiving a customized value proposition on behalf of your organization, please contact your Willis Towers Watson consultant or email us at

More information

Rx Collaborative savings analysis

If your company has more than 1,000 employees in your pharmacy benefit, then contact us for an RxC savings analysis.

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