I've had ridiculously heavy periods for the last 5 or so years, I use a super plus tampon and ModiBodi highest absorbency (think designed to hold wee) and still have to change every 45ish mins on my heaviest day / night or I will leak through to clothes.
Having ruled out any actual reason
via scans other than being perimenopausal (and she won't even confirm that tbh) she prescribed tranexamic acid to lighten the flow.
I had low hopes but bloody hell, my period was barely noticeable!!! I am in awe. I did use tampons and checked every hour but could go 4+ hours without changing and really a pad would have been enough! Just so different.
I'm used to feeling exhausted, wobbly legs, dehydrated, drained and awful during and after my period so about 10 days of feeling crap. My period finished yesterday and I am running on 100%!
I am feeling very evangelical about it. I don't like taking meds particularly, would rather address root cause but there seems to be none, and also it seems to cause basically no side effects, I had a bit of nausea and you have to take 2 massive tablets 3 times a day for 4 days, which is a bit yuk but please please, if you're suffering with flooding periods give it a try.