Can I take anti allergy medication before the physical examination

Antiallergic medication can usually be taken before a physical examination, but the doctor needs to be informed in advance of the medication situation. Antiallergic drugs generally do not significantly interfere with routine physical examination results, but may affect the accuracy of some special examination items.

Commonly used anti allergic drugs such as loratadine tablets and cetirizine tablets mainly exert their effects by inhibiting histamine receptors, and have no significant interference with basic tests such as blood and urine routine. Some drugs may slightly affect the transaminase values in liver function tests or cause temporary fluctuations in eosinophil counts. If the physical examination includes allergen detection, the drug may inhibit the allergic reaction of the body, so it is recommended to adjust the medication time in advance under the guidance of the doctor.

A small number of anti allergic drugs containing sedative ingredients, such as diphenhydramine tablets, may affect the results of neurological examinations and may cause symptoms such as drowsiness and delayed response after taking them. If syrup medication is taken before gastroscopy, it may interfere with mucosal observation. Immunosuppressant anti allergic drugs such as Montelukast sodium tablets may have potential effects on immune function related tests. Before the physical examination, the drug packaging box should be kept for the doctor to verify the ingredients and avoid using compound preparations containing ephedrine that may interfere with blood pressure measurement. When chronic allergy patients need to maintain medication, they can choose alternative drugs with less impact, such as acetaminophen. If any abnormal indicators are found after the physical examination, a comprehensive analysis based on medication history should be conducted, and if necessary, re examination should be conducted for confirmation.