WHO advises that ivermectin only be used to treat COVID-19 within clinical trials

"The current evidence on the use of ivermectin to treat COVID-19 patients is inconclusive. Until more data is available, WHO recommends that the drug only be used within clinical trials....

Ivermectin is a broad spectrum anti-parasitic agent, included in WHO essential medicines list for several parasitic diseases...

Previous recommendations on the use of therapeutics for COVID-19:

• Strong recommendation for the use systemic corticosteroids for severe or critically ill COVID-19 patients; with a conditional recommendation against their use in patients with mild/moderate COVID-19
• Conditional recommendation against administering remdesivir in addition to usual care.
• Strong recommendation against the use of hydroxychloroquine or chloroquine for treatment of COVID-19 of any severity"