It’s taken daily. It might not be effective immediately, though. Antidepressants can take 4-6 weeks to have any effect on depression. I can’t remember how long I’d been taking it before I realized that I no longer stuttered, but it couldn’t have been more than a few months. Realize that it might not work for you. Everyone stutters from a different cause and in his/her own way. The causes of stuttering can be physical and/or emotional. Not every person reacts to medication in the exact same way. Nevertheless, It’s a good place to start. There’s new research into a drug specifically targeted to treat stuttering. I’ll include two links. You can also check-out the researcher’s YouTube videos. Go to: Dr. Gerald Maguire for his video. You can Google him too. The links to the NIH studies are: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7118465/ Oops, this link doesn’t seem to be working. Sorry. https://pubmed.ncbi.nlm.nih.gov/32292321/#:~:text=Abstract,the%20severity%20of%20stuttering%20symptoms.