author
A 19th-century British physician and medical writer, he is best remembered for trying to explain how medicines act in the body at a time when modern pharmacology was still taking shape. His work offers a window into Victorian medical thinking and the early effort to turn drug treatment into a more systematic science.
Frederick William Headland was a British doctor, known chiefly for The Action of Medicines in the System, a medical work first published in the mid-19th century. Modern catalog and book records consistently identify him as a physician and medical scholar associated with that influential title.
His writing belongs to a period when medicine was moving away from older habits and toward more evidence-based explanations of how treatments worked. In that context, Headland's work stood out for trying to give medicines a clearer scientific rationale, making him part of the long transition toward modern pharmacology.
Reliable biographical details about his personal life are limited in the sources I could confirm here, so this overview focuses on the aspect of his career that is clearly documented: his role as a medical author whose work remained notable enough to be republished and cataloged long after his lifetime.