ferula assa-foetida l . is distributed throughout central asia and mediterranean area and grows wildly in iran and afghanistan. asafoetida is an oleo-gum-resin that is the exudates of the roots of ferula assa-foetida and some other ferula species. in iranian traditional medicine, asafoetida is considered to be sedative, analgesic, carminative, antispasmodic, diuretic, antihelmintic, emmenagogue...