As I say in the article, it’s important to know much quinine is in your favourite tonic water so that you can work out the daily dose that you’re receiving. You should contact the manufacturer to discover this information. Going to the company’s website and then emailing them might be a good way to do this. Once you know the amount of quinine in two litres of the tonic water, you should check with your doctor to find out how safe that amount is and how it may affect your general health and any other medical conditions that you have.
I’m glad the tonic water is so helpful for you, but safety is important. You need to remember that in many places quinine is only recommended for malaria treatment and not as a treatment for any other disorder. It’s important to do some research to discover how much quinine you’re ingesting and to get a medical opinion about whether it’s safe.