i've never used this, in fact never even heard of it. i would be very sceptical about buying or using anything like this for menopause. i belong to a number of menopause forums and have never heard it mentioned at all. believe me, if there was someone out there who had used it and it was any good, i think i would be aware of it.
your better bet is to look up all about menopause and take some supplements which are recommended during this time (calcium, magnesium, fish oil, etc.) which sometimes can help with the symptoms. or go and have a chat with your doctor. i really wouldn't waste your money on this magnet.