From the government website I linked to:
“ The NHS is offering new antibody and antiviral treatments to people with coronavirus (COVID-19) who are at highest risk of becoming seriously ill.
2 types of COVID-19 treatment are available:
sotrovimab (Xevudy)
molnupiravir (Lagevrio)
Sotrovimab is a biological medicine. It is also known as a neutralising monoclonal antibody (nMAb).
Molnupiravir is an antiviral medicine.
These treatments can help some people manage their COVID-19 symptoms and reduce the risk of becoming seriously ill.
Treatments for COVID-19 are for people aged 12 and over who have tested positive for the virus and are at highest risk of getting seriously ill.
Call 119 if you think you may be eligible for treatment but have not received your test kit by 10 January 2022.
If you're eligible for treatment and test positive for COVID-19, it's important to start the treatment as soon as you can.
The NHS will contact you within 24 hours of your positive PCR test result. This will usually be by text, email or phone call.
If you have not been contacted within 24 hours of your positive PCR test but you think you may be eligible for treatment, call your GP surgery or 111. They will be able to make an urgent referral if needed.”