You can make quinine tea from cinchona bark (try ebay, Amazon). If you can't get HCQ then quinine is better than nothing. But it's bitter tasting and estimating the dose will be difficult. I normally use a heaped teaspoon of bark in a mug of boiling water. Brew for 5 minutes, strain and add honey.
What's HCN? Do you mean HCQ?
You can make quinine tea from cinchona bark (try ebay, Amazon). If you can't get HCQ then quinine is better than nothing. But it's bitter tasting and estimating the dose will be difficult. I normally use a heaped teaspoon of bark in a mug of boiling water. Brew for 5 minutes, strain and add honey.