Nitazoxanide (NSC-697855) is a synthetic benzamide with antiprotozoal activity. Nitazoxanide exerts its antiprotozoal activity by interfering with the pyruvate ferredoxin/flavodoxin oxidoreductase dependent electron transfer reaction.

Doxycycline (Doxiciclina) belongs to the tetracycline class of antibiotics and is a broad-spectrum metalloproteinase (MMP) inhibitor with oral activity. Doxycycline has antibacterial activity and antitumor activity.

Apremilast (CC-10004) (CC-10004) is a potent and orally active PDE4 (IC50=74 nM) with anti-inflammation activities.

Kaempferol (Robigenin) is a natural flavonoid and an inverse agonist of ERRα and ERRγ. Kaempferol has a wide range of antitumor, anti-inflammatory, antioxidant, antibacterial and antiviral activities.

Artemisinin (Qinghaosu) is a natural product, a sesquiterpene lactone, derived from Artemisia annua. Artemisinin has anti-malarial activity, as well as neuroprotective and anti-tumor activity.

Kojic acid is a fungal metabolite that inhibits tyrosinase, an enzyme involved in melanin synthesis, with an IC50 value of 30.6 μM for mushroom tyrosinase.

Benzyl benzoate (Benzoic acid benzyl ester) is one of the older preparations used for the therapy of scabies. Scabies is a skin infection caused by the Sarcoptes scabiei. Its symptoms are red spots, severe itching (particularly at night), and may lead to a secondary infection. Benzyl benzoate is useful in the therapy of scabies because it is lethal to this mite. It is also used for the therapy of lice affection of the body and head. Benzyl benzoate is not the therapy of choice for scabies because of its irritant properties.

Hydroxychloroquine (2-[[4-[(7-Chloroquinolin-4-yl)amino]pentyl](ethyl)amino]ethanol) (HCQ) is an alkalinizing lysosomatropic drug that acts by inducing apoptosis of renal cancer cells in vitro and inhibiting TLR7/9. It is a medication used to prevent and treat malaria, and it's also being studied as an experimental treatment for COVID-19.