According to the expert, the hot beverage allows rapid gastric emptying, in which the food, especially sugar, moves from your stomach into your small bowel quickly. This reduces the time taken between drug ingestion and the onset of symptom control. In simpler words, hot beverages help to move the drug faster into the small intestines as a result it enters the bloodstream faster and starts to ease your discomfort.
The team of researchers explained that paracetamol is more soluble in hot water as compared to cold water. The temperature of the beverage can help to break the medication faster and help it enter the bloodstream in less amount of time.