Hi Dawncam - as Mary G says - you don't take progestogen with it. The description says the third metabolite of tibolone is a compound with "progestogenic and androgenic-like activities". However even though no progestogen is taken with it, due to the increased risk of endometrial thickening on it, personally I would only take this is if I could get an annual uterine scan on NHS - which is not unreasonable given it is stated in the product info and also in the product monograph I looked at too. That was my one concern. Hundreds of women are happily taking it though! Before starting testosterone I was considering this although would have totally gone against my nil-by-mouth approach to HRT!
Hurdity x