"i am 41 years old. i started taking minastrin at age 37 because my periods were lasting almost 10 days. my periods weren&#039;t bad (no cramps, heavy bleeding, etc) but most of those 10 days my period was light and i wore a panyliner because a tampon was irritating. but extended use of pantyliner was irritating as well.  i was also experiencing strong pms type mood swings as well.  despite my age, my doctor put me on minastrin. i maintain a healthy weight, eat well, non smoker, no other health conditions/concerns, etc.  i have not had a period since i started taking it and it is wonderful :).  i do get moody/irritable about a week before the placebo pills are taken. but i am aware of this and &quot;check myself&quot; (am i overreacting, etc?).  "