This study will be carried out by more than 30 liberal Tunisian doctors, who will submit
according to the inclusion / exclusion criteria of people who will receive (free of charge) a
capsule of the Nig5 product sublingually, each day. Against a control group which will be
followed with the same protocol as the first but which will not receive the product.
Randomization (even days: nigella group, odd days: control group)