Antiviral agent 64 (Compound 12) is a diarylheptanoid that can be isolated from Alpinia officinarum. Antiviral agent 64 exhibits cytotoxicity in human neuroblastoma cell IMR-32 with an IC50 of 0.23 μM. Antiviral agent 64 exhibits antiviral efficacy, that inhibits RSV, poliovirus, measles virus, HSV-1, and influenza virus H1N1, with EC50 of 13.3, 3.7, 6.3, 5.7, and <10 μg/mL, respectively.

N-acetylcarnosine (NAC) is thought to be able to combat some of the effects of oxidative stress as it has anti-oxidant properties.Right eyes of the rabbits (male grey chinchilla rabbits aged 3-4 months weighing 2-3 k) are instilled with 80 μL of formulation A containing 1 % N-Acetylcarnosine.

Orchidble (Compound 9) is a kind of phenanthrene compound which can be isolated from the roots of Bletilla ochracea.