Yes, lots of people stay at the first step, and never hit a full dose, I think likely due to willpower, psychosomatic, cost and anxiety. Personally I think this is fine, if it works for the individual.
for me though, I have followed the manufacturers guidelines, and my doctor (High Bp only) had said the lower doses do very little, it’s when you move to the higher doses you start to see it work properly, and I’m on week 3 of 7,5 and I would say that’s correct, weight loss has speeded up.
5mg was dodgy for me the first two weeks, but wholly manageable, I think and hope my optimal dose is 10.
the drug isn’t just an aappetite suppressant, which is what lots of people are using it for. It also regulates insulin and ensures your blood sugar is stabilised, that is what fixes many health issue , from removing the anxious jittery feeling, the hunger , dizziness, nausea, fatigue etc, when on the correct dose, you start to feel fantastic, as if you suffer any of those issues, then the medication resolves and manages it.
howveer if you don’t have those issues,then using it as a simple appetite suppressant will work and thus a partial dose below the starting dose of 5mg can be successful