Sofia Kessler reads drug labels the way other people read contracts: slowly, twice, and with real attention to the footnotes. As an internist and clinical pharmacologist on a hospital formulary committee she has spent years deciding which warnings are theoretical and which ones put people in hospital beds, and that judgment is what she brings to the reader questions here.
Her favourite questions are the unglamorous ones: why metformin is started low and slow, why isotretinoin demands strict pregnancy prevention, why an antidepressant takes weeks rather than days to work and must never be stopped abruptly. She answers with mechanisms first, because a reader who understands the why keeps themselves safer than one who just memorises a rule.
She covers the metabolic, skin and mood corner of the site. She is strict about one point: pharmacology on a website is population-level knowledge, and readers are individuals. Her replies end with a pointer to a prescriber whenever the honest answer depends on labs, doses, or the rest of a medication list she cannot see.