Gothic drugs: an Australian account mentions a street pill possibly called death.
a lethal hallucinogenic drug, paramethoxymethamphetamine or PMMA, that may have been sold as ecstasy, and may go by the street name "death".
Phil Dick made up a drug with such a part-time name for his very great and sad A Scanner Darkly (1977). Substance D was called "death", sometimes.
(via Warren Ellis)