More interesting, I got the same story from the pharmacist at rite aid. She couldn't believe I was going to pay for that and then she said, "People are up in arms over lots of stuff, but this right here is a crime that no one notices. 5 months ago you would have paid a lot less."
What may have happened is a drug shortage. Generic companies run on razor thin margins and sometime stop manufacturing drugs that become unprofitable for them. If enough companies do that and you're left with only one manufacturer, price increases are typical.
I remember a quote from the CEO of Apotex (one of the biggest generic manufacturers in the world). The CEO said "I don't care about scientists, I just need the best lawyers).
What about tinactin, lamisil, lotrimin, monistat? They are all anti fungal creams OTC for about $10. Is this prescription you had 12x as potent?
Making them expensive means poor people don't do their full course of treatment because they can't afford it (or want to save some for next time), increasing resistance.