From Reuters:
Drug Recycling Offers Alternative to Imports
When Joana Ramos' father-in-law died recently, family members in Georgia sent her his left-over Parkinson's drugs rather than throw them out, in hopes they would help someone who couldn't afford them.

"I was able to find a home for them here," said Ramos, a social worker with cancer patients in Seattle, Washington.

Patients like Ramos' clients, who are struggling to afford their prescription medicines, are finding a source besides cheaper Canadian imports -- other patients.