Dems: Postal schedule must protect Rx deliveries

Postal reform is embroiled in controversy as lawmakers and the Postal Service tussle over how to strengthen the agency's financial outlook.

Donahoe has said the service is losing $25 million every day. His plan would end Saturday letter delivery starting in August but preserve six-day package delivery. Fully implemented, the limited schedule would save $2 billion annually, according to estimates.

The plan caused a stir on Capitol Hill and raised the stakes for a postal reform deal some leaders say will conclude within months.

In their letter Wednesday, lawmakers noted that some medications are sent in small envelopes, or through First-Class Mail, which could hamper their on-time delivery under Donahoe's plan.

The letter was distributed by the Pharmaceutical Care Management Association, which represents pharmacy benefit mangers.