While there is really a small chance you could get laid off (as an example, if your chain supermarket closes some stores) you should not have much problem finding another job.  When all factors are considered, however, I would need to say that the prices charged at CVS Pharmacy and Rite Aid Pharmacy can be comparable.  Make certain you take the time to ask about a less expensive version so that they will check the list.  
http://hr-life.ru/node/53687