Treatment for ferritin deficiency usually involves iron-containing therapies. The most common option is oral iron supplementation, and these products may contain different iron salts. The right choice depends on ferritin level, hemoglobin status, gastrointestinal tolerance, age, pregnancy status, and the underlying cause. Some people tolerate standard oral iron well, while others develop nausea, constipation, abdominal discomfort, or indigestion. If oral therapy is not effective, if absorption is impaired, or if the deficiency is more severe, a clinician may consider intravenous iron. The important point is not chasing the “best drug” by name, but selecting the treatment model that fits the person. In ferritin deficiency, therapy should be driven by the clinical picture, not by brand recognition alone.