Catch up on OSN’s top stories of the week

Here are some of the leading stories on in the past week:
Unused drugs impact cost, environment
When unused pharmaceuticals associated with phacoemulsification were measured at four surgical sites, the estimated annual cost of the wasted products reached approximately $195,200 per site. Read more.
FDA rejects Kala’s dry eye NDA, requests additional data
A complete response letter from the FDA regarding the company’s new drug application indicated that efficacy data from an additional trial will be necessary to support a resubmission. Read more.

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