Should we also stay in the dark ages, because walking certainly is better for your body than all of this lazy driving we do.

Just because medicine used to always taste gross, does not mean it has to stay that way. Plus, some of the flavorings help, but do not remove the bad tastes.

In the end, this was a service she paid for. It was their mistake. They should have taken control of the unused medicine and replenished it with grape flavored stuff. These actions should have been accompanied with a sincere apology and the OP would have left and probably had an ok view of RiteAid.

Personally, I don't know what it is about RiteAid. We've tried to use several of them, only to find their Pharmacy staff to be rude or, at the least, make you feel like they are doing you a huge favor doing their jobs. Never at a CVS do we feel that way, regardless of location. Thus, we always go to CVS. I suggest the OP continues to use CVS in the future if it's not too far for them.