Hi Sunanada, Welcome to HCM! Thanks for posting your query. I am happy to address your questions. Duoluton L is a birth control pill. If you have a history of forming ovarian cysts then use of the birth control pill Duoluton is prescribed to suppress the ovaries and thereby suppresses the cyst formation. The hormones FSH and LH are the hormones the brain produces to stimulate the ovary. They will be abnormal if you are on the birth control pill because it will suppress FSH and LH production (that is how it works to suppress the ovaries). The side effects vary from each patient but in general are menstrual irregularities; headache, dizziness; breast discomfort; depression; disturbance of appetite; fluid retention; hair loss or hirsutism; GI disturbances (nausea and vomiting); genitourinary changes; cholestatic jaundice; BP increase, liver impairment; rarely photosensitivity; erythrocyte sedimentation may be accelerated; increases in plasma copper, iron and alkaline phosphatase; may affect serum triglyceride and lipoprotein levels; retinal vascular thrombosis. Hope I have answered your query. If you have any further questions, I will be happy to help. Thanks