I used to work at Diabetic and Respiratory Supply of USA (I think they've since changed their name to Chronic Care Solutions) in Clearwater, FL (Tampa area). Medco's just across the bay in Tampa.
They are growing, and have gone from dispensing insulin and nebulizers to a fully stocked pharmacy and have expanded beyond diabetic and respiratory supplies to include ostomy (and some others. Forgive me, it's been a while since I worked there.

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Anyway, I felt the mechanics of it from a tech's point of view were similar to that of retail, only instead of having screaming customers in your ear, you have screaming customers in your ear.

This is not to say that all customers are angry or screamers, so I hope my point in referring to that scenario is understood. The techs duties involved ordering meds, customer service, inputting prescriptions (I would put in the scripts for patients using an insurance card like FL Medicaid, Express Scripts, PCS, etc.), filling prescriptions, calling for refills, running reports, packing the patients medications into boxes after they were checked, etc. The pharmacists mainly called for new Rxs, answered any patient questions regarding medication, and checked the medications that the techs filled, which was an all day process. Other than that, one or two pharmacists had involvings in managerial duties, but that's it.
For me, it was an experience that I'm glad I had, but it wasn't for me. I love working in a hospital.

Hope this helps.