I was wondering your outcome. I am on Metformin ER 500mg 2x a day. I am not diabetic. I have been on this for years (probably 10+) for PCOS.
Well, I tried to refill my prescription on Friday, 1/6/17, and WALGREENS said it was no longer covered. I called United Healthcare today and they confirmed that it is no longer covered. The rep lapsed into a long explanation that made no sense to me at the time, until, I read your post this evening. The rep did mention to me that I was receiving the fortamet (?) version of Metformin, and, I would need to switch to glucophage. That made no sense that the generic wasn't covered, but, the name-brand was.
I looked at my bottle and indeed the manufacturer is lupin. I remember mentioning, to my new doctor, how sick I had been feeling on the metformin- to the point that I stopped taking it. All of a sudden, this past script, wasn't making me ill. Now, it all makes sense- why, and, why it's not being covered.
My other issue, which, I find to be extremely unethical- is that United Healthcare's prescription coverage is Caremark. Which, is the CVS brand. When, you call the prescription line, they actually answer "CVS Caremark"! I can't understand how it's legal for a store (pharmacy) conglomerate to be the supplier/insurance and the pharmacy- to have the ability to set prices, control what's available and covered, and, to whom. It just seems so unethical- I just can't think of a better word to describe it.
When, I first was aware of this... I asked United Healthcare if there would be a change in service, since, CVS was now our prescription insurance- basically. They said "No", BUT, I can tell you... on more than one occasion- I was sent from Walgreens to CVS, because, for one reason or another the prescription needed to be filled by CVS. Shocking coincidence.. right?
Then today, the rep, not- so subtly suggested that I should consider switching to CVS for my prescription needs, because, they know what's covered and this sort of thing wouldn't happen. Really? That just doesn't sit right with me!