The haemostatic effect of burned radioactive lantern mantles powder is investigated. Forty one male Wistar rats were divided randomly into three groups. Following anaesthesia, animals' tails were cut off. The volume of blood loss, bleeding time and clotting time in control animals were 4.07 ± 1.69 cc, 127.73 ± 44.98 sec and 107.27 ± 51.11 sec, respectively. In the second group, the animals were treated with a non-radioactive lantern mantle, and these figures were 2.34 ± 0.70 cc, 54.50 ± 8.75 sec and 22.9 ± 15.34 sec, respectively. In the third group, the animals were treated with a radioactive lantern mantle, and these figures were 1.54 ± 1.69 cc, 39.54 ± 44.98 sec and 36.62 ± 51.11 sec, respectively. These results clearly show significant alterations in the volume of blood loss, as well as the bleeding or clotting time, following the topical use of the non-radioactive and radioactive lantern mantle powder.