My wife is 47 years of age and going through menopause phase. She is residing at a place in India where there is hard water which lacks in iron content. She is experiencing hairloss from the crown and hair partition region of the head . She had her periods on 29/11/2010 and did not have any periods, thereafter, till she saw a gynaecologist in Feb 2011 who prescribed some medicines and she again had her periods on 11/03/2011 and on 07/04/2011 after which it has stopped. For what duration is her menopausal phase expected to last? When do we assume her menopausal phase to have commenced, 29/11/2010 the date of commencement of her last periods or 07/04/2011 the last time her periods started after she took medicines prescribed by the gynaecologist? When should she expect this phase to get over? Will she continue to experience the hairfall throughout the menopausal phase? Please advise.