Dysmenorrhea is painful menstruation and is the most common problem of women.
It leads women to avoid from work, school, and other activities. There are many causes which develop dysmanorrhea. With exception of serious pathologic condition, Premenstrual syndrome is consisted of physical and emotional symptoms that some women experience regularly in relation to menstruation. This syndrome occurs monthly, generally within 7 to 14 days prior to menstruation.
Symptoms are nervous tension, depression, mood swings, headache, breast tenderness, water retention, food cravings, etc.
In case of simple and general dysmenorrhea and premenstrual syndrome, Freegyn would be great help for you.

note:
The information provided is of a general nature and should not be used as a substitute for professional medical advice. To diagnose clearly you should discuss with your family doctor.