The best guess in the world most likely wouldn’t grant me the knowledge related to your amphetamine treatment and which symptoms you are trying to control. In my case, Vyvanse eases my symptoms of bipolar, as well as my pseudo ADD issues. Whatever the case may be, whether you have bipolar disorder or inattentive ADD, you must keep yourself nourished while on Vyvanse. Food and fluids make Vyvanse work better, it’s just a fact.
You might not feel like eating. You may entirely forget about keeping yourself hydrated. This is simply no good. You need to eat healthy and drink healthy. So, if you’re wondering why your Vyvanse isn’t working as well as it should be then consider taking a look at your diet. Malnourishment kicks you in the ass without you even being aware.