We report allergic sialadenitis as a novel side-effect of naproxen, a
non-steroidal anti-inflammatory drug (NSAID), Bilateral swelling of th
e major salivary glands and a rash occurred a few days after the patie
nt had taken the drug. High-dose systemic corticosteroid therapy was r
equired to control the disorder. Because the salivary gland swelling w
as not initially recognized as an adverse drug reaction, further doses
of naproxen were given on two occasions, with similar results.