Bay aspirin and aspirin actually have the same ingredients, and both are aspirin tablets. Bay aspirin is actually aspirin enteric tablets manufactured by Bayer, the main specification is 100mg. ordinary aspirin is also called ordinary aspirin tablets, aspirin enteric tablets, aspirin tablets. However, the specifications of Bay aspirin enteric tablets are 100mg, while the specifications of regular aspirin are 50mg and 75mg. The simple distinction between Bay aspirin and aspirin is that the one produced by Bayer Pharmaceuticals is called Bay aspirin. Domestic aspirin has many ordinary tablets and enteric tablets, which are actually produced by different manufacturers. The imported aspirin is the original drug, so it may be better than the domestic one in terms of clinical efficacy and adverse reactions to use, and it has a patent. The domestic aspirin can be said to be a generic drug, so this is the main difference between them. But for indications, there is basically no big difference, the main ingredient of both is aspirin tablets. If it is an ordinary aspirin tablet, it may not necessarily be required to be taken on an empty stomach, it can be taken with or after meals. But enteric tablets need to be taken empty, because enteric tablets are released in the intestine, when fasting can be released through the stomach directly to the small intestine, which can provide better clinical efficacy.