Re: Generic drugs
there wasn't enough of a market for it for generic drug makers to bother producing it.
And this isn't particularly uncommon. I can't get one of my glaucoma medications at the moment because there's a "nationwide shortage", according to the pharmacy, with no projected end date.
Pharmaceutical markets are relatively inflexible. Yes, pharma companies advertise, but there's only so much you can do to recruit new customers. And the products are fairly heavily regulated, and there are other distortions (such as insurance company formularies). Personally I'm glad most of those distortions exist, but I recognize that it does mean generics manufacturers are sometimes going to predict that a particular drug is no longer likely to be profitable.