Hi @henrietta, I’m finding lasts max 30-50 mins. Flushing when I have had it ranges from pink in face/hot skin to full body flushing/blotchy skin/itchy skin. The full body flushing has only occurred a couple of times for me and it pretty uncomfortable. Side effects have happened in public and I have just tried to carry on as if nothing is happening or unusual. My family say when it does happen it generally doesn’t look too bad. only had stomach cramps a few times when I first started tec and realised that if I take the tablet halfway through my meal that seems to avoid any stomach issues.