Which form of iron preparation is suitable for administration via both intramuscular and intravenous routes?

Explanation

Iron dextran is the only iron formulation that can be safely administered through both intramuscular (IM) and intravenous (IV) injections. Other iron compounds like iron sorbitol citrate, ferrous sulfate, and ferrous fumarate are typically given orally or by a single parenteral route, not both.