An extraction process and composition produced thereby for use as an antihistamine
is disclosed. The composition comprises an extraction of Loranthus, which
is derived from a species of Loranthus known to possess quantities of quercetin
and avicularin, which may be administered orally in an amount up to 300 mg per
day, and preferably between 100 to 300 mg per day. The extraction process comprises
forming an ethanol extraction from raw Loranthus, filtering the extract,
and passing the filtered product through a separation column, eluting, distilling
and concentrating the resultant extract and thereafter applying a vacuum to remove
water and solvents to produce a concentrated powdered form of the extract.