Related Experiment Video
Updated: Aug 19, 2026

Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes
Published on: May 10, 2022
Oral versus high dose parenteral iron supplementation in pregnancy
1Department of Obstetrics and Gynecology, Maulana Azad Medical College and Lok Nayak Hospital, New Delhi 110002, India. ashkumar@eth.net
Objective:
To compare the effect of daily oral iron supplementation with two injections of high dose parenteral iron.
Method:
A total of 220 pregnant women with a singleton pregnancy and hemoglobin between 8 to 11 g% at 16-24 weeks gestation were identified and randomly divided into two groups. Group A was started on daily oral iron therapy of 100 mg of elemental iron. Group B was given 250 mg of iron sorbitol intramuscularly and repeated at an interval of 4-6 weeks. Blood indices were evaluated at the beginning of study and at 36 weeks to see the effect after iron supplementation in the two groups. The data were analyzed using SPSS software, version 10.1.
Results:
Definitive and comparable improvement in hemoglobin and all the blood indices (hematocrit, MCH, MCHC, MCV, Serum iron and TIBC) was observed. The absolute change in hemoglobin and hematocrit was 1.18+/-0.68 g% and 4.02+/-2.59% in oral group, 1.34+/-0.77 g% and 4.93+/-3.65% in parenteral group, respectively. Serum ferritin showed statistically significant absolute rise (10.43+/-7.92 microg/dl) after parenteral iron supplementation as compared to oral iron supplementation (9.76+/-4.78 microg/dl). Obstetric outcome was comparable in two groups.
Conclusion:
Two treatment regimens are biologically equivalent in terms of hematological response. Two high doses of intramuscular iron can be a good substitute to meet iron requirement in pregnancy.
More Related Videos
Related Concept Videos
Drug Dosing: Infants and Children
Drug Delivery: Parenteral Route
There are three primary parenteral routes: intravenous (IV), intramuscular (IM), and subcutaneous (SC). The IV route introduces the drug directly into the bloodstream, ensuring immediate action. The IM route...
Routes of Drug Administration: Parenteral
The intravenous route (IV) of drug administration can be further categorized into two types. The bolus injection administers the entire dose rapidly, while an intravenous infusion slowly delivers smaller doses steadily.
The IV route is often...
Teratogenicity
Vitamins

