Social media users have been sharing a video of a doctor making the primary claim that quinine present in Schweppes tonic water and zinc will "knock out" the COVID-19, the illness caused by the new ...

In tropical climes, an indispensable rejuvenator to hard-working British colonials is gin & tonic. The tonic has always meant Schweppes, a bitter, effervescent quinine water supposed to ward off ...

The Food and Drug Administration has banned the use of quinine to treat leg cramps. Although this drug has been available for centuries, the FDA has determined that it is far too dangerous to use for ...

Q: I read your column on the use of quinine pills for leg cramps in the San Diego Union-Tribune. After OTC quinine products were taken off the market, my doctor suggested I use Schweppes tonic water, ...