standard dosing schedule is 2.5 for 4 weeks, 5 for 4, 7.5 for 4, 10 for 4, 12.5 for 4, then 15 until goal. some people respond fast and stay low. i never went above 10 until the last 10 pounds, then 15 for a month. took 18 months total to drop 90.
The steady state approach - going in at lower doses to let levels accumulate gradually - is exactly right for avoiding the worst of the sides. The assumption that smaller peaks are less likely to cross the symptom threshold holds up in practice for most people.
the analogy holds - if appetite and weight are stable at the current dose and you're not trending in the wrong direction, there is no reason to increase. the default in most areas of medicine is minimum effective dose, which is especially true for anything taken long term. the exception is if something changes: regain starts, hunger returns noticeably, or you're trying to reach a lower target