It is generally not recommended to take cold medicine after taking calcium tablets to prevent the ingredients in calcium tablets and cold medicine from conflicting and affecting the effectiveness of the medicine. It is recommended to take cold medicines two hours after taking calcium tablets. There are many types of cold medicines, such as wind-cold and flu granules, compound aminophenol alkylamine tablets and so on. The ingredients in different medicines are different, so it is not possible to ensure that the ingredients in cold medicines and calcium tablets are not mutually exclusive. Therefore, it is not recommended to take cold medicines after taking calcium tablets to prevent the effects of the medicines from being affected or to prevent the calcium in calcium tablets from being absorbed smoothly. It is recommended that cold medicines be taken about two hours after taking calcium tablets. Cold and flu patients should consult a doctor as soon as possible and follow the doctor’s instructions to take medication regularly after a thorough examination to clarify the cause of the cold and flu.