In contrast, the second study of 52 patients was doubleblinded,
randomized, and adequately powered to demonstrate
a 30-minute difference in cooling time. This study showed that
2 mg/kg dantrolene sodium was ineffective in reducing the
cooling time, length of hospital stay, and mortality (Table 5)
[29].
Antipyretic drugs were used following the findings of
increased pyrogenic cytokines during heat stress [1]. These
were given to few patients with heatstroke and concomitantly
with other cooling techniques, and thus their effectiveness
could not be properly assessed [15].