[h]e received information on medications from multiple sources, including meetings, other professionals in the field, articles and occasional meetings with drug representatives.
Contrary to [plaintiff’s] contention, evidence that [the prescriber] ceased prescribing TNF-blockers in combination with [the immunosuppressive] after [plaintiff] was diagnosed with hepatosplenic lymphoma does not prove that he would have changed his prescription practices based on the warning they suggest. A warning about rare occurrences of hepatosplenic lymphoma associated with therapy combining [these drugs] is bound to have less persuasive power than an instance of the disease affecting a doctor’s own patient followed that therapy.