Paspanguwa Herbal Formula, a Traditional Medicine of Sri Lanka: A Critical Review

Abstract

The Sri Lankan traditional medicinal system reaches back over 3000 years. The traditional medicines of Sri Lanka have gained an impressive level of acceptance over their more 'Western' counterparts, despite the lack of substantial scientific evidence. This is due mainly to cultural, folklore, habitual use, and ethological reasoning. One well respected traditional formula, the 'paspanguwa' herbal formulation has found its way to modern times, due to its repositioning with a modern outlook in the current consumer market. However, scientific investigations on its effectiveness against disease conditions are scarce, but this void has not posed any threat to its position as an herbal beverage, which imparts health and wellness aspects in general. The 'paspanguwa' formulation consists of five ingredients, namely Ginger (Zingiber officinale), 'Pathpadagam' (Hedyotis corymbosa), 'Katuwalbatu' (Solanum xanthocarpum), 'Veniwalgata' (Coscinium fenestratum) and Coriander (Coriandrum sativum). In some instances other herbs such as 'Thippili' (Piper longum), Thai eggplant (Solanum melongena), Black pepper (Piper nigrum), Wishnukranthiya (Evolvulus alsinoides) and Pawatta (Justicia adhatoda) may also be used. Nevertheless, for potential acceptance of the herbal formula on a global basis, much more research is needed and the scientific voids should be sufficiently filled in order to substantiate its standing as an effective medicine even for minor ailments such as the common cold.