I researched this one for about 3 months so happy to share what I found.

On titration: the gradual dose increase is primarily about GI tolerance. The most common side effects (nausea, reduced appetite to the point of discomfort) are dose-dependent and much more manageable when you ease in. The clinical trials all use titration protocols for this reason, starting at a therapeutic dose right away produces much higher rates of GI side effects.

On timeline: appetite changes tend to be noticeable fairly early (1-2 weeks in some cases) but the more meaningful changes in body composition research happen over 8-12+ weeks. The drug has a ~7-day half-life so it takes several weeks to reach steady state.

On stacking: in the research literature it’s often run solo, at least initially, to establish tolerability. Some researchers do combine it with compounds targeting different mechanisms (like a GHRH/GHRP stack) but I’d get comfortable with it on its own first.