shopping for deodorant

I was shopping for deodorant the other day and stumbled across 'clinical strength' deodorant which comes packaged in a box, not just sitting on a shelf with cellophane around it. It gave me pause. Exactly what does this mean? Do people in clinics sweat more? Can everyday ordinary people use this without permanent damage? Can you only use it in a clinic? Maybe it's the stuff you use after a mammogram. You know, they always tell you to not wear deodorant on the day of your mammogram. Maybe it's special mammogram deodorant. I threw caution to the wind and bought some of this special stuff and tried it today, even though I wasn't in a clinic, and wasn't getting a breast Xray. So far so good. I'll keep you posted.