9 reasons to check inactive ingredients in oral meds

US researchers find most medicines contain ingredients known to cause allergy or exacerbate intolerances

Almost all oral medications contain at least one inactive ingredient known to cause an allergic reaction in susceptible patients, an investigation by US academics has found.

Inspired to act when a patient with coeliac disease became sick after taking a PPI containing gluten, the team, led by the Brigham and Women’s Hospital and Massachusetts Institute of Technology, set out to determine how many drugs contain potential allergens.