Quantum Research Thera Zinc Throat Spray - 2 Fl OzQuantum health therazinc throat spray 2 fl. Oz. Is formulated with zinc gluconate for the most effective throat spray that can fit in your pocket. Our travel size throat spray may cause minor stomach upset if taken on an empty stomach, so be sure to use after a snack. Suggested use for adults is to spray in back of throat up to 8 sprays every 2 hours. country of origin : united states size : 2 fz pack of : 1 selling unit : each keywords : cold;