Paxlovid is the second new antiviral pill to be approved for Covid in the UK after molnupiravir was approved in November. Again you need to get on drug within about 5 days after symptom onset
Apparently according to the media Paxlovid will be made available through 70 new hospital clinics known as NHS Covid medicine delivery units, and sent directly to the door of eligible patients infected. Some of those most at risk of Covid have already been sent PCR tests to store at home and take immediately if any symptoms develop in an attempt to speed up the treatment process.
Details to access molnupiravir can be found here