Aspirin is a common medicine, used lots in modern life. It is a pain killer, which not only helps people in pain feel better, but also allows painful surgeries to take place that would have been impossible before. It has change many lives and allowed many people to overcome pain by swallowing a pill.
Learn MorePenicillin, first known as mould juice, is a chemical that kills bacteria. It is used for cleaning wounds and cuts. It has saved many lives, because before it was invented, infected cuts were very dangerous and often lethal.
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