>How do you know what% users have side effects This information is typically provided in the published drug facts for each medication. https://pubmed.ncbi.nlm

>How do you know what% users have side effects This information is typically provided in the published drug facts for each medication. https://pubmed.ncbi.nlm.nih.gov/2686432/ https://pubmed.ncbi.nlm.nih.gov/2686432/ https://www.rxlist.com/cipro-drug.htm#dosage https://www.rxlist.com/cipro-drug.htm#dosage Studies provide further info. > or what doseage that occurs at or what causes this reaction in the subpopulation? It's through trials they discover the incidence of side effects and appropriate dosages for maximum therapeutic benefit. > You don't and just wave that off, that's why it's flippant. Nobody is waving anything off when providing perspective.