T h e r a p e u t i c I n d e x 227 Rumalaya® (liniment) 3. Rubefacient action: Mentha arvensis, Pinus longifolia, and Cinnamomum camphora are used as rubefacients for external application. They produce redness of the skin by causing dilation of the capillaries and increasing blood circulation, thus distracting from the deep-seated pain and providing relief in various rheumatic conditions such as lumbago, arthritis, and neuralgia. 4. Antioxidant action: Psoralea corylifolia and Mentha arvensis have potent antioxidant action, which acts synergistically with the anti-inflammatory property of Rumalaya liniment.
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