Aviane and rite aid

I have been taking Aviane for about 2 years now and i can agree with almost everyone. In the beginning it is really rough because your body has to get used to it. After about 3-4 months though it does get better. However there are still some things that don't go away, such as the loss of sex drive. In the past i have tried everything from numerous pills to the shot to the patch and my body strongly disagrees with all of them. I finally found something that cured almost everything, and now my pharmacist tells me its been discontinued.
He gave me substitute called Lutera and said it was the same thing just made by a different company. If its all the same thing, why do they discontinue one and not the other? I asked him why it was discontinued and he couldn't or maybe wouldn't tell me. Does anyone know why? I am going to try the Lutera but i know from experience that just because its the same thing doesn't mean it will work the same.