Hi, Endogest 200 mg contains progesterone which is a natural female sex hormone is used to treat menstrual and pregnancy related issues that are caused due to hormonal imbalance. Side effects of Endogest are nausea, vomiting, abdominal pain, abdominal bloating, dizziness, depression, mood swings, hot flashes, joint pain, vaginal discharge, vaginal bleeding, headache, breast tenderness and enlargement, urinary incontinence, allergic reactions etc. Tgmet 500 mg contains metformin which is used to treat type 2 diabetes mellitus. It helps to maintain blood sugar levels and thus prevent serious complications of diabetes. It is also used to treat menstrual related disorder known as polycystic ovarian syndrome (PCOS) in women. Side effects of Tgmet are nausea, vomiting, diarrhoea, taste change, abdominal pain, bloating, loss of appetite, headache, dizziness, shakiness, tiredness, changes in vision, allergic reactions etc. Productiv F tablet contains L-arginine, green tea powder, chaste berry, magnesium, vitamin E, iron, zinc, selenium, vitamin B6, folic acid and vitamin B12 which is used to correct hormonal imbalance for ovulation, to reduce oxidative stress and to reduce insulin resistance. Side effects of Productiv F are nausea, skin rashes, vomiting, headache, stomach pain, GIT upset, bloating, allergic reactions etc. Letroz contains letrozole which is used alone or with other treatments like surgery or radiation, to treat early breast cancer in postmenopausal women. It is also used to treat advanced breast cancer that has spread within the breast or to other areas of the body. Side effects of Letroz are hot flashes, increased sweating, increased thirst, fatigue, hypercholesterolemia, dizziness, drowsiness, headache, back pain, constipation, chest pain, allergic reactions etc. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Zubayer Alam, General And Family Physician,