Can tea be consumed together with cold medicine?

Generally speaking, tea should not be consumed together with cold medicine. The specific reasons are as follows:

Tea contains large amounts of catecholamines, theophylline, and vitamin C. These components may interact with certain active ingredients in cold medicines, such as caffeine and codeine, potentially increasing drug side effects or even causing antagonistic reactions. This not only affects the effectiveness of the medication—reducing its efficacy or leading to incomplete treatment—but also, when consumed in excess, increases the metabolic burden on the liver and kidneys. Therefore, it is recommended to drink plain boiled water or mineral water when taking cold medicine, and to avoid consuming tea together with the medication.

While taking cold medicine, patients should maintain a light diet, avoid spicy, greasy, and irritating foods, and refrain from drinking strong tea, strong coffee, alcohol, or similar beverages. If discomfort occurs, patients should seek medical attention promptly and receive standardized treatment under a doctor's guidance, which will help promote recovery.