FIELD: medicine.SUBSTANCE: present invention refers to a prolonged release tablet containing theobromine and comprising a prolonged release layer and a fast release layer wherein the prolonged release layer consists of 40-60 wt % of theobromine as an active ingredient and 14-19 wt % of a prolonged release base consisting of polyethylene oxide and hydroxypropyl methylcellulose and the fast release layer consists of 10-30 wt % of theobromine as an active ingredient and 0.5-2 wt % of an aerating ag...