Padma 28 potentilla formula is a herbal formula in tablet form, produced in Switzerland according to an ancient Tibetan recipe. Padma 28 has powerful anti-oxidant effects, which have shown to be important in maintaining healthy circulation, especially in the legs. Padma 28 has not been shown to interfere with any other medications, however, we would advise that you should allow half an hour before or 2 hours after taking prescribed medicines. When using as instructed, no restrictions for use have been identified. If you are taking prescribed medicines for circulation or heart problems, you should let your doctor know you are also taking this product. Do not take this product if you are allergic to any of its ingredients. If you are pregnant or breast feeding consult your doctor before taking Padma 28.