Suggest Treatment For Irregular Periods And Heavy Bleeding

hi, i am 32 yrs old, and have been married for 21/2 yrs. 4 years back i had taken postpone tablet and since then i have irregular periods. not only that i have heeavy bleeding and goes for days. it becomes difficult to stop the bleeding. have tried woth many docs and all the reports say normal. but none of the medines are working. if one medicine helps in stoping the bleeding this cycle, same medicine will not work for next cycle. pls get the solution for my problem