The quinine ?

It's a capsule prescription that I get from my doctor. I take it once a day at bedtime. I THINK it's about 200 mg or so. When the FDA started saying how dangerous it was, my PCP refused to continue to prescribe it. He was afraid it was too dangerous even though I (and my parents) had taken it for years. I even offered to sign a release of liability. I COULD have bought it from the internet from another country, but that scared me. I then consulted a sleep doctor who agreed to prescribe it for me. Bingo. Life saver.