They do make a significant improvement in reducing overall anxiety and stuttering.. I was on Paxil for a few years but it did eventually stop working as you adapt to it, and there was no way I was increasing my dosage past 45mg. Please be mindful your son is 14 years old and although he’s in a great place at the moment, his brain is still developing and these types of medications cross the blood-brain barrier. They have side effects, which is why I stopped Paxil. It also affected my ability to learn, memory, and access my creative side of thinking. I know as a parent you would do absolutely anything to ease your son’s anxiety, but please do some research on long term effects of Prozac and how it can affect his brain as a growing child. I battle with the thoughts of going back on SSRI’s everyday simply because it was soo much easier.. but I feel like I lost a part of me after a few years of taking them and I’m still hoping it’ll come back. (It’s been almost 9 months of being off them) my mother is a nurse and she would beg me to consider stopping them, in her terms and from her experience, these types of medications turn you into a ‘zombie’. And that played on my mind a lot. I’m referring to ‘long term’ use of SSRI’s, not to mention the hell I went through tapering off them, the side effects were almost unbearable on some days. I miss my fluency.. and the lack of anxiety I had on them, but at the same time I’m scared of what they do to your brain.