Not an increased gag reflex, but I did have an increased salivary response while brushing my teeth, specifically the back of my mouth and tongue the day after I increased to 7.5 mg tirz.
It was strange because I wasn’t nauseated, but in a way thought that I might throw up.
I went over the toilet as we all would do, opened my mouth, and the saliva just poured out of my mouth for about one minute, but without a gag or heave from the gut. Just heavy salivation for one minute.
That only happened once.