The invention of aspirin by Gerhardt was abandoned until finally Felix Hoffman, a German chemist, rediscovered it in 1887 and realized of its unique assets of lessened gastrointestinal irritation compared with salicylic acid. Shortly afterward, "aspirin" was patented by Bayer in 1889 as a new analgesic question drug. The lessened https://www.directivepublications.org/allergy-and-clinical-immunology/