I didn’t notice a difference with nicotine. Weed always made my stutter WAY worse and gave me horrible anxiety. I am in recovery from heroin and cocaine addiction, opiates always relaxed me to the point where my stutter would almost disappear and I think that’s a big reason why I spent almost 8 years addicted to them…but after I got clean, my stutter was 10x worse for about 6 months while my brain healed from using so heavily. I promise that no drug is worth using over your stutter.