I pushed the dose up fast until I hit the point where sides showed up, moving from 2 mg the first week to 4 mg within a month and staying there until benefits started fading. Once you locate that initial effective level, it's best to stay there before going higher. I dose once weekly and let myself get a bit hungry before the next shot because some refeeding seems to protect thyroid function. Stacking tirzepatide with reta never made sense to me since reta raises glucose while tirzepatide lowers it, which can reduce reta's impact.
I've just started week 3 of reta and am about to check my week-2 weight. People coming off semaglutide or tirzepatide usually need more reta to get real appetite control and forward progress. We only have so much time before the drug's effects weaken or sides appear once we push past 6 mg. Research points to starting at 4 mg and using higher monthly increases to build momentum fast.