Sodium Houttuyfonate (Houttuynin sodium bisulfite), the active compound of the Houttuynia plant, is mainly used for treating purulent skin infections, respiratory tract infections, including pneumonia in elderly patients, and chronic bronchitis.

Nodakenin ((+)-Marmesinin) is a compound with anti-allergic and anti-inflammatory activities.

Diphylline (Diprophylline) is a xanthine derivative. Diphylline exerts bronchodilator effects and to a lesser extent vasodilator and diuretic properties. Diphylline probably acts as a competitive inhibitor of phosphodiesterase which leads to an increase in intracellular cAMP. This results in relaxation of bronchial smooth muscle and other smooth muscles. Diphylline may also antagonize adenosinereceptors. Diphylline is used in the treatment of acute bronchial asthma, chronic bronchitis and emphysema.

Shinjulactone M, a quassinoid extracted from the Ailanthus species of the Simaroubaceae family, serves as an antimalarial (febrifuge) and anthelmintic. It is also explored in the study of chronic bronchitis, epilepsy, and asthma [1].