People should never use monoclonal antibodies. They are made using discarded human embryos mixed with DNA from other species. Mixing species makes the monoclonal antibodies "chimerical," a cross between man and beast. Under no circuмstances should you put that witch's brew into your body.
People don't need monoclonal antibodies to recover from Covid-19. In the early stages you need Ivermectin and possibly antibiotics. In the latter stages, you need intravenous antibiotics and oxygen. The CDC Covid-19 treatment protocols force hospitals to withhold antibiotics unless a positive sputum test confirms bacterial pneumonia, and those tests are not done until the patient is in his death throes. All of the people dying "with Covid" are actually dying of untreated bacterial pneumonia.
If you really want antibodies (which again you don't need), you should obtain what is called Convalescent Plasma Antibodies from a recovered Covid patient. If someone in your family has recovered from Covid, they will have these natural antibodies.
Most importantly, do not live in fear. This is a manufactured pandemic. Unless you are already extremely unhealthy, your chances of dying, when properly treated, are less than being struck by lightening.