any doctor will tell you do not use a medication if it is expired. even otc meds. i used to work in the medical field i will say things were more strict back then but expired drugs hasn't changed much. hope this helps.
do doctors recommend use of otc allergy and cold remidies that are expired? . sinus medicine-doxylamine. phenylephrine. acetaminophen. allergy med-loratadine. supplements-vitamin c. zinc. vitamin d