Cesia is a generic version of Cyclessa. It contains both estrogin and progestin hormones so it is what is known as a combined pill.
It is also a triphasic (3 phase) pill which means that there are three different "phases" of pills in each pack, plus the last week of tablets with no active ingredients. Each week has a different amount of the progesterone hormone. This is why it is important to take the pills in the correct order.
Its possible side effects are very limited to headaches, nausia/vomiting, breakthrough bleeding and spotting between periods and tender breasts.
Other problems that Cesia can benefit are: acne, heavy menstrual bleeding, painful menstrual periods, irregular menstrual periods and the dreaded premenstrual dysphoric disorder (PMDD).
Because it is a triphasic pill it is important to take the pills in the correct sequence, not miss a pill and to take it at the same time of the day every day.
I hope your fiance appreciates what you are putting up with for his pleasure
Best of luck!!