CVS found the right prescription on Wednesday to keep its stores open in the Kansas City area and avoid a repeat of a work stoppage last week by pharmacists: It promised to boost hiring to ease workloads that sometimes make it hard to take a bathroom break. “It all relates to not enough dollars going in to hire the appropriate staff to be able to deliver the services,” said Ron Fitzwater, CEO of the Missouri Pharmacy Association. Pharmacists in at least a dozen Kansas City-area CVS pharmacies did not show up for work last Thursday and Friday and planned to be out again this Wednesday until the company sent its chief pharmacy officer with promises to fill open positions and increase staffing levels.