Ever since, US President Donald Trump promoted the use of hydroxychloroquine to treat COVID-19, there has been a claim that since kalonji has 100% hydroxychloroquine, it is effective in treating a coronavirus infection. The viral posts recommend consumption of half a teaspoon of kalonji seeds with honey to prevent a coronavirus infection.
Kalonji (Nigella Sativa) Seeds is very popular in various traditional systems of medicine like Unani and Tibb, Ayurveda and Siddha. It has been widely used as antihypertensive, liver tonics, diuretics, digestive, anti-diarrheal, appetite stimulant, analgesics, anti-bacterial and skin disorders.
According to an article written by Dr Shakil Moidin, an Oral and Maxillofacial Pathologist from Saudi Arabia, Nigella Sativa seed oil extracts contain Thymoquinone (TQ) chemical compound which is known for its immune modulation capability. But nowhere is it found that kalonji or Nigella Sativa is the source of hydroxychloroquine. None of these studies could confirm that kalonji can prevent infection from coronavirus.
WHO maintains that it does not recommend self-medication with any medicines, including antibiotics, as a prevention or cure for COVID-19. Antibiotics do not work against viruses, and they only work on bacterial infections. A virus causes COVID-19, so antibiotics do not work. Antibiotics should not be used as a means of prevention or treatment of COVID-19. They should only be used as directed by a physician to treat a bacterial infection.