Hi. I've Been Taking 0.5 Mg. Clonazepam [activas] Once Daily

Hi. I've been taking 0.5 mg. clonazepam [activas] once daily for about 5 years. Just recently I was changed to clonazepam Sandoz. I am a 73 y.o. woman, going through a move after 46 years. I see a psychopharmacologist regularly. She is concerned re: the stress involved in the move. The Sandoz brand is
totally ineffective, and my Rite Aid pharmacy, which I have been going to for years, no longer carries Activas. I have called several other pharmacies, with no luck. What should I do? Thank you. Betty Walsh YYYY@YYYY