I don't think that answers the question. The question was "for which kind of…". Naming one specific past product doesn't answer that, because surely you don't m

I don't think that answers the question. The question was "for which kind of…". Naming one specific past product doesn't answer that, because surely you don't mean that no future candidate warrants can pose similar risk. Contergan (thus spelt) is thalidomide, BTW. Thalidomide is the name of the active agent, which is used in products named contergan (as well as several other names).