https://www.bbc.co.uk/news/health-60117313.amp
Thousands needed to try new Covid antiviral treatments
Over-50s and younger adults with underlying health conditions are being urged to participate in a study of life-saving treatments for Covid-19.
The study is open to those who test positive for Covid and had symptoms develop in the previous five days.
Volunteers will be given pills to take at home.
The study will help decide how antiviral drugs will be used, Prof Sir Jonathan Van-Tam, the deputy chief medical officer for England, said.
Here is anons take on this. Googled hourglass:
Symbolic uses
The hourglass, sometimes with the addition of metaphorical wings, is often depicted as a symbol that human existence is fleeting, and that the "sands of time" will run out for every human life. It was used thus on pirate flags, to strike fear into the hearts of the pirates' victims.
In plane sight, at least they advise you on the packaging.