The alkaloidal components of the Bhutanese medicinal plant Corydalis calliantha Long,
which is used for the treatment of malaria, have been assessed. Four known alkaloids …

ETHNOPHARMACOLOGICAL RELEVANCE: Corydalis dubia is used in Bhutanese
traditional medicine as a febrifuge and for treating infections in the blood, liver and bile …

ETHNOPHARMACOLOGICAL RELEVANCE: The plant Aconitum orochryseum
Stapf.(Ranunculaceae) is employed together with other plants in Bhutanese traditional …

Three bisbenzylisoquinoline alkaloids were isolated for the first time from Stephania rotunda
tuber. Their structures were elucidated by spectroscopic methods and their antiplasmodial …

The chemical constituents and biological activities of Corydalis crispa (Fumariaceae) were
investigated for the first time. The phytochemical study resulted in the isolation of nine known …

Stephania rotunda (Menispermaceae) is used in traditional medicine for the treatment of
fever. Four major alkaloids: dehydroroemerine, tetrahydropalmatine, xylopinine …

From the stem bark of Strychnos malacoclados, one new bisindole alkaloid, 3-
hydroxylongicaudatine Y (1), was isolated along with the known alkaloids vomicine (2) …

Ethnopharmacological relevance The aerial components of Meconopsis simplicifolia (D.
Don) Walpers are indicated in Bhutanese traditional medicine for treating malaria, coughs …

Malaria remains a major public health problem due to the emergence and spread of
Plasmodium falciparum drug resistance. There is an urgent need to investigate new sources …

ETHNOPHARMACOLOGICAL RELEVANCE: Stephania rotunda Lour.(Menispermaceae) is
a creeper growing in many countries of Asia and commonly found in the mountainous areas …