hi!welcome to health care magic. betel nut in Pan parag contains alkaloids like arecoline and arecadine which is now considered to be the cause for oral submucous fibrosis
a precancerous condition
as it irritates the oralmucosa.hence if we take the betle nut in larger amounts it may lead to cancer.so stop taking panparag and take care of your health. wishing u good health.thank u.