Gun Powder has no relationship with menses problem. I purchased this bottle some two years ago when I was travelling from UAE to UK.
Few days ago, my friend told me about her menses problem. The peculiar symptom was
flow stops and re-start. There was pain and flow was scanty. I sent a mail to my friend (homeopath) and asked her to suggest ready made medicine. She said give her gun powder 3x four time a day.
I am happy to tell you that she has been recovered from her illness.