that's been asked in literally every thread that has discussed this and no, modern tonic water is not as strong as the stuff the british used to make and is not

that's been asked in literally every thread that has discussed this and no, modern tonic water is not as strong as the stuff the british used to make and is not an effective dose for either malaria or covid. You'd need to drink 30 liters or so a day to get a single dose, you'd kill your kidneys first. tonic syrup/concentrate, maybe.