When people took Honey Zufa syrup along with regular cough medicine, they used about the same amount of extra cough medicine as those who took a fake syrup. This means the Honey Zufa might not help cut down on extra cough treatments.

This claim says that a honey-based herbal syrup called Honey Zufa can help reduce coughing in people with mild to moderate COVID-19 better than a fake treatment, and this was measured using three different ways to score coughing over two weeks.