I would not mix homeopathic with pharmaceuticals. Choose one or the other.
There is no known drug interactions according to Alli's question site. http://community.myalli.com/forums/p/36840/207613.aspx
I don't have an answer to this question but I would also like to know if is legal to bring Kava root in to the country? I hear that it has been made illegal in England but there is a movement to have...
Kava, asava pepper, or intoxicating pepper.
It grows to an average height of 6 ft (1.83 m) and has large heart-shaped leaves that can grow to 10 in (25.4 cm) wide.