Ayurved Siriraj Prasaplai is a Thai traditional herbal drug for pain treatment. Mostly it was
used for antipain during menstruation or dysmenorrhea. This drug has been described by
alternative medical doctor for treatment of primary dysmenorrhea for more than 10 years and
showed clinical satisfied response. From review about this agent, it does not have clinical
trial to prove its efficacy. So the author produce this research to study in efficacy of
Ayurved Siriraj Prasaplai.