Table 1.

List of natural products that are commonly used to treat fever, cold and respiratory related ailments in traditional South Indian medicine system. The active ingredients extracted from these natural products are used for docking with SARS-CoV-2 drug targets.

S. No	Natural products Tamil name	Scientific name	Accepted Scientific name	Active ingredients
1.	Nilavembu	Andrographis paniculata	Andrographis paniculata (Burm.f.) Nees	Andrographolide, Bis-andrographolide, Caffeic acid
2.	Vetiver	Chrysopogon zizanoides	Chrysopogon zizanioides (L.) Roberty	Vetivone, α-cadinene, α-calacorene
3.	Korai kizhangu	Cyperus rotundus	Cyperus rotundus L.	Cyperene, β-selinene
4.	Cittapiryan	Mollugo cerviana	Mollugo cerviana (L.) Ser.	Vitexin, Orientin
5.	Milagu	Piper nigrum	Piper nigrum L.	Piperine, p-cymene, D-limonene
6.	Santanam	Santalum album	Santalum album L.	α, β-santalol, Vanillic acid
7.	Pei pudal	Trichosanthes cucumerina	Trichosanthes cucumerina L.	Bryonolic acid, Cucurbitacin B, Cucurbitacin E, Isocucurbitacin B, β-sitosterol, Stigmasterol
8.	Chukku	Zingiber officinale Roscoe	Zingiber officinale Roscoe	6-shogaol, 6-ginerol, zingiberol, alpha pinene, beta pinene, camphene, Limonene, myrcene
9.	Seenthilkodi	Tinospora cordifolia	Tinospora cordifolia (Willd.) Hook.f. & Thomson	Tinosporin, Berberine, Palmatine, Magnoflorine,
10.	Sathakuppai	Anethum sowa	Anethum sowa Roxb.	α-phellandrene,Carvone and Limonene