The U.S. District Court for the District of Columbia reached an instructive decision regarding conflicting expert testimony in prescription medication injury cases where causation is at issue.
In the case, Patteson v. Maloney, Dist. Court, Dist. Col. (2013), the plaintiff was suing her prior psychiatrist for prescribing her Seroquel, which was an antipsychotic drug, in order to treat her insomnia.
After taking the medication, the plaintiff developed tardive dyskinesia, a movement disorder characterized by repetitive, involuntary movements and uncontrollable muscular tics. Her lawsuit thus claimed that the condition was caused by the Seroquel, on the basis of expert testimony. The defendant psychiatrist motioned to exclude all testimony linking Seroquel to tardive dyskinesia.