PURPOSE: To provide a magnetic plaster having uniformly magnetized adhesive surface, by mixing magnetic powder to a plaster containing an antiphlogistic and analgesic agent, thereby facilitating the application of the plaster to the sensible point of the body, and enabling the exhibition of the synergistic effect of the drug and the magnetic force.

CONSTITUTION: A plaster containing a drug such as antiphlogistic agent or analgesic agent, etc. is compounded with magnetic powder to keep the powder by the adhesive force of the plaster. The mixture is spread on a cloth or a film, etc. to obtain a plaster having uniformly magnetized adhesive surface. The physical effect of the magnetic power of the magnetic powder and the chemical effect of the drug compounded in the plaster act synergistically to the body.