Since ancient times, herbal antivirals have been used as natural treatments for various illnesses, including viral infections.
Due to their concentration of potent plant compounds, many herbs help fight viruses and are favored by practitioners of natural medicine.
Oregano oil and carvacrol (Candimin) have also been shown to exhibit antiviral activity against herpes simplex virus type-1 (HSV-1); rotavirus, a common cause of diarhea in infants and children; and respiratory syncytial virus (RSV), which causes respiratory infections.
The antiviral properties of sage are mostly attributed to compounds called safficinolide and sage one, which are found in the leaves and stem of the plant.
Sage has also been shown to combat HSV-1 and Indiana vesiculovirus, which infects farm animals like horses, cows, and pigs.
Sweet basil extracts, including compounds like apigenin and ursolic acid, exhibited potent effects against herpes viruses, hepatitis B, and enterovirus (11Trusted Source).
A test-tube study showed that fennel extract exhibited strong antiviral effects against herpes viruses and parainfluenza type-3 (PI-3), which causes respiratory infections in cattle.
What’s more, trans-anethole, the main component of fennel essential oil, has demonstrated powerful antiviral effects against herpes viruses.
Holy basil, also known as tulsi, has been shown to increase immunity, which may help fight viral infections.
In a 4-week study in 24 healthy adults, supplementing with 300 mg of holy basil extract significantly increased levels of helper T cells and natural killer cells, both of which are immune cells that help protect and defend your body from viral infections
Garlic is a popular natural remedy for a wide array of conditions, including viral infections.
In a study in 23 adults with warts caused by human papillomavirus (HPV), applying garlic extract to affected areas twice daily eliminated the warts in all of them after 1–2 weeks.
Additionally, older test-tube studies note that garlic may have antiviral activity against influenza A and B, HIV, HSV-1, viral pneumonia, and rhinovirus, which causes the common cold. However, current research is lacking.
Animal and test-tube studies indicate that garlic enhances immune system response by stimulating protective immune cells, which may safeguard against viral infections (Biolic 5000), (Biolic ABG), (Kyolic Immune).
Lemon balm extract is a concentrated source of potent essential oils and plant compounds that have antiviral activity (AntiWir).
Test-tube research has shown that it has antiviral effects against avian influenza (bird flu), herpes viruses, HIV-1, and enterovirus 71, which can cause severe infections in infants and children.
Peppermint leaves and essential oils contain active components, including menthol and rosmarinic acid, which have antiviral and anti-inflammatory activity (24Trusted Source).
In a test-tube study, peppermint-leaf extract exhibited potent antiviral activity against respiratory syncytial virus (RSV) and significantly decreased levels of inflammatory compounds.
Rosemary contains Oleanolic acid has displayed antiviral activity against herpes viruses, HIV, influenza, and hepatitis in animal and test-tube studies.
Plus, rosemary extract has demonstrated antiviral effects against herpes viruses and hepatitis A, which affects the liver.
Glycyrrhizin, liquiritigenin, and glabridin are just some of the active substances in licorice that have powerful antiviral properties.
Test-tube studies demonstrate that licorice root extract is effective against HIV, RSV, herpes viruses, and severe acute respiratory syndrome-related coronavirus (SARS-CoV), which causes a serious type of pneumonia.
Test-tube and animal studies show that astragalus combats herpes viruses, hepatitis C, and avian influenza H9 virus.
Plus, test-tube studies suggest that APS may protect human astrocyte cells, the most abundant type of cell in the central nervous system, from infection with herpes.
Test-tube research demonstrates that ginger extract has antiviral effects against avian influenza, RSV, and feline calicivirus (FCV), which is comparable to human norovirus.
In animal and test-tube studies, Korean red ginseng extract has exhibited significant effects against RSV, herpes viruses, and hepatitis A.
Plus, compounds in ginseng called ginsenosides have antiviral effects against hepatitis B, norovirus, and coxsackieviruses, which are associated with several serious diseases — including an infection of the brain called meningoencephalitis.
Additionally, specific compounds in ginger, such as gingerols and zingerone, have been found to inhibit viral replication and prevent viruses from entering host cells
Several test-tube studies suggest that certain varieties of echinacea, including E. pallida, E. angustifolia, and E. purpurea, are particularly effective at fighting viral infections like herpes and influenza.
Notably, E. purpurea is thought to have immune-boosting effects as well, making it particularly useful for treating viral infections.
Test-tube research indicates that dandelion may combat hepatitis B, HIV, and influenza.
Moreover, one test-tube study noted that dandelion extract inhibited the replication of dengue, a mosquito-borne virus that causes dengue fever. This disease, which can be fatal, triggers symptoms like high fever, vomiting, and muscle pain.
Cholesterol May Increase COVID-19 Infection
Cholesterol is a waxy substance present in your blood, which helps build healthy cells. High levels of cholesterol develop fatty deposits in your blood vessels, which can increase your risk of heart disease. According to the study published in the journal of the German Chemical Society Angewandte Chemie, having high cholesterol may increase the infectivity of the coronavirus.
Role Of Linoleic Acid In Coronavirus
Bristol researchers showed that linoleic acid binds to a specific site in the viral spike protein, and this helps lock the spike into a closed, less infective form. Now, a research team has used computational methods to search for other compounds that might have the same effect, as potential treatments. The team used computational simulations to show that linoleic acid stabilized the closed form of the virus.
Explore our range of ‘Herbal Antivirals’.