Explain why different discomfort relievers are manufactured and sold.?


Answers:
Some work in different ways to relieve pain (work on pain receptors or prevent the cell from releasing signals of pain, blocking the signal from getting up to your brain etc). These have different chemical structures since they act differently. Many medication are more or less effective in ethnic group based on genetics and lifestyle (food, exercise etc) and multiple options allow them to find something that can work for their individual torment.

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