When Can Primolut-N Be Taken Again If Suffering Heavy Vaginal Bleeding?

i am taking primolut n for 10days as prescribed by my OB,i stopped taking it as i was bleeding i felt something wants to burst,on the 3rd day after i stopped this med. i was bleeding heavily and passing on clots,even changing pads every 30mins-1hr. i'm on my 7th day since i stopped this drug. when can i take it again?