Is Gynae Cvp Safe And Effective?

i had a few questions about gynae cvp... 1. i am 41 years old. i have heavy bleeding every month. my doc has prescribed me gynae cvp. does it have any side-effects? 2. will i get addicted to the drug? 3. could this be a symptom of nearing menopause? 4. does it stop producing blood within me ? or does all the blood produced remain inside and doesn t come out?