Hello,
Loestrin 20 tablets contain two active ingredients, ethinylestradiol and
norethisterone. But it is not without
side effects which include nausea, vomiting, breast tenderness, enlargement, changes in menstrual bleeding, breakthrough bleeding, rise in blood pressure, gall stones and increased chances of blood clots.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided.