Drug bezoars.
(1) Drug bezoars are rare and difficult to diagnose, meaning that they may be overlooked.  (2) The severity of drug bezoars is linked to the risk of intestinal obstruction and delayed overdose due to the release of the active substance from compacted tablets.
D001630:Bezoars / Q000139:chemically induced*; D064420:Drug-Related Side Effects and Adverse Reactions; D006801:Humans; D012307:Risk Factors