Mealey's (June 4, 2021, 12:02 PM EDT) -- BOSTON — The Massachusetts federal judge overseeing the Zofran birth defect multidistrict litigation on June 1 said that since the Food and Drug Administration has repeatedly declined requests to add birth defect warnings to the anti-emetic drug, the claims in all 482 pending federal cases are preempted by federal law and subject to summary judgment....