For myself, the effects were subtle. 15-20 mins after taking it, I just feel a bit light headed as my heart rates slows down. The physical symptoms of anxiety are significantly reduced: my heart stops pounding, I don't break into a cold sweat, I don't start to shiver or feel my throat tighten. The nerves are still there but now at least I just need to focus on that instead of fighting against my body at the same time. Helps my stutter maybe around 40-70% depending on the situation. Again, that's just my own experience, it can differ for you depending on the nature of your stuttering. Please also consult with a physician before taking any medication.