That's a whole other discussion about the nature of pharmacies too. The pharmacists themselves have specific degrees and I always assume they're more knowledgeable about things like drug interactions than even the prescribing doctors, if that's the kind of medical advice you mean. One probably works with pharmacy technicians at the desk though; I'm not sure about their qualifications. At the very least the techs can help me find the right OTC medicine if I want it as drug stores tend to locate those strategically near the pharmacy.

But many US pharmacy chains also have RNs onsite providing services, part time, for vaccines and such. That's not quite the same as an MD but it's different than pharmacology.