BusyMom 2 years, 8 months ago on Peanut allergy kills Lawrenceville teen

Here's a question that I haven't seen the answer to: the AJC reported that he took an OTC medicine (probably Benadryl) but it didn't work. If he was at a Walmart, he could have gotten an Epipen from the pharmacy. Did the pharmacy not offer or know about the situation? He had access to an Epipen even though it wasn't his own, so I don't understand why that option wasn't used.