u/ContextPrevious5300

Ok so I know you’re going to jump down my throat about this but I was using tirz with really good results. Food noise canceling was incredible for someone that struggled with it my entire life. I’m wanting to try Reta for a few reasons: A cost been getting the Tirz from Eli Lilly direct and it’s $$$$. B the additional benefits of Reta we all know about.
My question is I’ve been running it for 2 weeks and I feel nothing where the tirz was instant. Should I not be worried does it take more time or should I be thinking my source is bad?