I will definitely post my lab results when I get them. I will most likely have to request a full panel for next time, I have the feeling I will get the basic TSH test this first time. It may take some patience to get proper attention to detail with my thyroid through charity care, but hopefully it works out and I can find a stable dosage.
I've been on generic, Synthroid and Levoxyl at one time or another, sometimes a combination of more than one. Quite frankly, I saw no difference in any of them. Of course, as was pointed out by other posters, fillers can have negative impact on some people.
When I switched from generic to Levoxyl (my endo insisted, and I humored him!), my labs actually came back worse than they'd been. I had to increase the Levoxyl very slightly (6 mcg/day) to have the same effect.
Apparently, you've been on two different generics, and one (Mylan?) worked better for you than the other. The biggest problem with generics is that the pharmacy you get your meds from can change its supplier of generic at any time. So, even though you keep going to Walmart, they might start buying from another manufacturer, or due to supply issues, etc., they might buy from another manufacturer once, then switch back.
Good luck...
Forgot to mention -- some manufacturers use different fillers/binders that might inhibit absorption or something.
I am currently on Tirosint, but was on both synthroid and generic levo. I actually did better on the generic than I did on the synthroid.
Is Mylan the manufacturer of your particular levo? Maybe your dosage simply isn't high enough. When you get your labs back, you should post them here so members can help evaluate them and comment further?
I would think your test results would dictate if the generics are good for you or not, everyone is different with thyroid meds, some do well on generics (Levothyroxine) and some do better on name brand (Synthroid) I was on Levo for the first six months after I was diagnosed with Hashi's, After the 6 mo. I still felt the same symptoms and my TSH stayed at the same level, I asked my Endo. why and he said the generic was sometimes not as consistant as the name brand, I just think it did not work for me, because many do OK on Levo, six weeks after I started on Synthroid, my TSH dropped from 6.8 to 0.078
and it was the same strength as the Levo I had been taking. Good Luck FTB4