Hi - the British Menopause Society in its paper on progestogens recommends increasing the progesterone dose if the licensed dose does not protect the lining:
https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=0CAMQw7AJahcKEwjomsiuwbn6AhUAAAAAHQAAAAAQAg&url=https%3A%2F%2Fthebms.org.uk%2Fwp-content%2Fuploads%2F2021%2F10%2F14-BMS-TfC-Progestogens-and-endometrial-protection-01H.pdf&psig=AOvVaw29NmNjxxpxt363sSOxpmyv&ust=1664524027868101In their summary they say this:
"The dose of the progestogen should be proportionate to the dose of estrogen. Women who require
high dose estrogen intake should consider having their progestogen dose increased to ensure
adequate endometrial protection."
"While no data is
currently available on the endometrial effects of high doses of estrogen and the optimal dose of
oral or vaginal progestogen in this context, women who require high dose estrogen intake should
consider having their progestogen dose increased to ensure adequate endometrial protection (e.g.
micronised progesterone 300 mg for 12 days a month instead of 200 mg in cyclical HRT regimens or
200 mg daily on a continuous basis instead of 100 mg in continuous combined HRT regimens)."
The studies that this statement is based on provide the rationale of the consultants legitimately prescribing increased progesterone doses, though many (most?) GPs are not likely to be aware of this.
Hi if you’re peri then it would be better to take two tablets of Utrogestan on days 15 - 26 of your cycle. x
Ditto Dotty's comment above. If you are still having your own cycle and peri then it's understandable that the 100 mg for 25 days may not be controlling your bleeding and either the double dose for 25 days or 14 days (or a compromoise in between) woud give more protection - and provided there is not abnormal explanation for the additional bleeding (ref scans etc).
Hurdiy x