In general, there are no known effective anti-viral drugs — not for the common cold, not for influenza, not for HIV, and not for COVID-19. Antibiotics do not work.
For mild disease in the case of COVID-19, symptoms are treated (control fever, keep hydrated), and for more severe disease, oxygen support and anti-inflammatory drugs may be given. Here are guidelines from various organisations:
Many anti-viral drugs are being suggested, pushed, promoted, revoked — and researched — to prevent or treat COVID-19. It is difficult to keep track of all that is going on. Here is a “living” (updated) guideline from WHO that informs the general public on whether a drug is known to work or not:
Here is a link to living research evaluations, in case you would like to dig deeper into the question:
COVID-END COVID-19 Updated summary of scientific evidence for clinical management]