Final answer:
The individual most likely to provide healing herbs to mentally disturbed patients is a herbalist, who uses natural plant-based remedies as part of traditional healing practices.
Step-by-step explanation:
The individual who gave healing herbs to mentally disturbed patients was most likely a herbalist. Herbalists make use of various plant species to treat a wide range of human ailments. In traditional Chinese medicine, a healer might use herbs to help patients with mental disturbances. This practice of utilizing natural substances for medicinal purposes is an aspect of ethnopharmacology, which is a significant interest to pharmaceutical companies in search of new biomedical cures. Pharmacists, on the other hand, dispense drugs that have been prescribed by a doctor, rely on an extensive knowledge of chemistry and biology, and rarely compound their own drugs in modern times. Unlike herbalists, pharmacists in the US must have a doctorate in pharmacy and be state-licensed.