I am away on vacation and have developed an uti. My gyn MD advised me to pick up these tablets. However, nothing at the hotel store has this. When I told the store clerk what I needed, she(has a nursing background)said that it is an antibiotic and most likely needs a prescription. She did provide information on a pharmacy that delivers to the hotel, and suggested I call my MD back and get a script called in. I feel reluctant to do this as my Dr never said it was only by prescription. So, is it? Or, isvtgete an otc product I can buy?