“…(b) A cardiotoxin. The effect of this fraction has been studied extensively (for example: Chopra and Ishwariah, 1931;Gottdenkar and Wachsteinum, 1940;Sarkar, 1947Sarkar, , 1948Sarkar, , 1951Sarkar and Maitra, 1950;Bhanganada and Perry, 1963). It was found that small doses of venom increased the force of myocardial contraction, cardiac output and arterial pressure, while with large doses there was depression of the myocardium, leading to asystole.…”