Claim: Hematoporphyrin (C34H38N4O6) is a porphyrin prepared from hemin that is orally induced to patients as an antidepressant.
Evidence: Hematoporphyrin (Photodyn, Sensibion) is a porphyrin prepared from hemin. Oral Hematoporphyrin has also been used as an antidepressant and antipsychotic since the 1920s. C34H38N4O6