Iron deficiency can make you feel tired, weak, dizzy, or short of breath. If iron tablets are not suitable for you, IV iron infusion restores your iron levels directly and efficiently, often in just one visit.
An iron infusion is a simple 30–60 minute procedure where iron is given through an IV drip into your vein. It bypasses your digestive system entirely, giving you 100% absorption — unlike iron tablets where only about 10% is absorbed. Think of it as refuelling your body directly, instead of hoping a faulty pump works.
Iron infusion is a medically supervised procedure that delivers iron directly into the bloodstream via intravenous infusion. It enables rapid correction of iron deficiency, particularly when oral supplementation is ineffective or not tolerated. Treatment is typically completed within a single 30 to 60 minute session, with pre-treatment blood tests performed to confirm iron deficiency and guide appropriate dosing.
Here’s the truth about iron tablets — your body only absorbs about 10% of each dose. The rest passes through your digestive system, often leaving you with cramps, constipation, and nausea along the way. Not exactly a great deal.
Iron infusion skips all of that. The iron goes straight into your bloodstream through a small needle in your arm — 100% absorbed, no stomach side effects, no waiting months to feel a difference.
The procedure takes just 30–60 minutes. Most patients can return to their normal activities the same day.
Iron infusion is especially useful if you:
Iron is essential for making haemoglobin (the protein in your red blood cells that carries oxygen around your body). When your iron is too low, your organs and tissues don’t get enough oxygen. You feel it in every part of your day: exhaustion that rest doesn’t fix, mental fog, and breathlessness from the lightest activity.
Iron deficiency is one of the most common nutritional deficiencies in Singapore. According to SingHealth, approximately 50% of women in Singapore may be affected — many without realising it, because the early symptoms are easy to dismiss as stress, poor sleep, or just being busy.
Iron deficiency can affect anyone, but these groups are particularly vulnerable:
| Who Is at Risk | Why Iron Deficiency Develops |
|---|---|
| Women with heavy periods | Monthly blood loss depletes iron stores faster than diet can replenish |
| Pregnant / breastfeeding women | Iron demand doubles; foetal development draws heavily on maternal stores |
| IBD / coeliac disease patients | Gut inflammation impairs iron absorption even when intake is adequate |
| Post-bariatric surgery patients | Bypassed gut segments reduce iron-absorbing surface area permanently |
| Chronic kidney disease | Reduced erythropoietin and ongoing dialysis blood loss compound deficiency |
| Vegetarians and vegans | Plant-based (non-haem) iron absorbs at 2–10% vs 15–35% for meat-based iron |
| Pre-surgical patients | Optimising haemoglobin before surgery reduces transfusion risk and speeds recovery |
Iron affects almost every system in your body, so its symptoms can be easy to dismiss as “just stress” or “not sleeping enough.” If you experience several of the following — especially if you’re in a high-risk group — a simple blood test can confirm whether iron deficiency is the cause.
Our DR+ GPs recommend IV iron infusion treatments when one or more of the following apply:
| Situation | Why Iron Infusion Is Appropriate |
|---|---|
| Oral supplements caused side effects | Nausea, constipation, or stomach pain that makes tablets unsustainable |
| Ferritin or haemoglobin severely low | Rapid IV correction is safer than waiting months for tablets to work |
| Poor gut absorption | IBD, coeliac disease, or post-bariatric surgery prevents effective oral uptake |
| Pregnancy with severe deficiency | Safe after first trimester; IV iron does not cross the placenta at therapeutic doses |
| Pre-surgical optimisation | Surgeons prefer Hb ≥130 g/L before elective procedures to minimise transfusion risk |
| Ongoing blood loss exceeds oral replenishment | Heavy periods or chronic disease means tablets can’t keep up with ongoing losses |
| Oral iron failed to raise levels | Non-response after 3 months of compliant oral therapy indicates absorption problem |
Your GP will review your symptoms and arrange a blood test if you don’t have recent results. This checks your ferritin, haemoglobin, and transferrin saturation — to confirm deficiency and calculate the right dose for you.
No fasting required — eat normally on the day. Wear comfortable clothing with easy access to your arm. Bring a list of your current medications. That’s it.
A small IV cannula is inserted into a vein in your arm — similar to a routine blood draw. The iron solution is then infused slowly over 30–60 minutes. You’ll be seated comfortably throughout. Most patients use this time to browse their phone, read, or rest. A nurse monitors you continuously, and your DR+ GP remains on-hand.
After the infusion, you’ll rest briefly at the clinic so our team can confirm you’re well before you leave. Most patients go home or return to work the same day.
A follow-up test confirms your iron levels have been successfully restored and guides any further treatment if needed.
Iron infusion is a safe procedure when administered by trained medical professionals in a clinic setting. Most side effects are mild and short-lived. Serious reactions are rare with modern formulations.
Administered directly into the bloodstream, IV iron provides full absorption, safely restoring haemoglobin and ferritin levels. Ideal for patients with severe deficiency, poor oral absorption, or intolerance to oral supplements.
Eligible Singaporeans and PRs receive subsidised GP consultations under the Community Health Assist Scheme.
Your infusion is prescribed and supervised by a registered GP. Nursing staff monitor you continuously during and after the procedure.
Available at DR+ Medical & Paincare Ang Mo Kio, subject to availability. Blood testing and treatment can often be arranged on the same visit.
Our GPs manage the full care journey — from diagnosis and iron infusion to follow-up blood tests and ongoing chronic disease management.
Item |
Estimated Cost |
GP Consultation |
From $25 |
|---|---|
Iron Deficiency Profile Blood Test (Iron, TIBC, % Saturation) |
Enquire at clinic |
Comprehensive Deficiency Screen (Iron, Ferritin, Vitamin D, B12, Folate) |
Enquire at clinic |
IV Iron Infusion (Ferric Carboxymaltose / MONOFER®) |
$500 |
Your doctor will review your blood results — specifically your serum ferritin, haemoglobin, and transferrin saturation. An iron infusion is typically recommended if your ferritin is very low (usually below 15–30 µg/L), your symptoms are severe, or oral supplements have caused side effects or failed to raise your iron levels after 3 months of consistent use.
You may feel a brief pinch when the IV cannula is inserted, similar to a routine blood draw. The infusion itself is generally not painful, and most patients find it comfortable. During the treatment, you will usually be seated comfortably and may use your phone, read, or rest while the infusion is being completed.
Most patients notice improved energy levels within 1–2 weeks of their infusion. Full benefit — including improvement in haemoglobin and resolution of all symptoms — typically takes 4–8 weeks, as your body uses the replenished iron stores to produce new red blood cells.
The infusion itself takes 30–60 minutes depending on the dose. Including consultation, pre-medication if needed, infusion, and post-infusion monitoring, most patients spend 1–2 hours at the clinic in total. Same-day appointments are available at most DR+ locations, subject to availability.
Common side effects include a temporary metallic taste, mild headache, muscle aches, or brief nausea — most resolve within 24–48 hours. Skin discolouration at the injection site can occur if iron leaks from the vein. Severe allergic reactions are very rare with modern formulations (fewer than 1 in 200,000). You are monitored by our clinical team throughout the procedure.
Yes. Iron infusions are considered safe after the first trimester and are commonly recommended when oral iron tablets are not tolerated or when deficiency is severe. Always consult your DR+ GP and obstetrician before proceeding. Our GPs will coordinate care with your maternity team to ensure your infusion is managed safely.
No referral is needed. You can walk in or book an appointment at any DR+ clinic. If you have recent ferritin or blood test results, bring them along — this speeds up the process. If you don’t have recent results, your DR+ doctor will arrange a blood test at your consultation before recommending treatment.
Our clinic is CHAS-accredited. For eligible Singapore Citizen CHAS cardholders, subsidies may apply to consultation charges. The iron infusion itself is generally not covered under CHAS.
MediSave is generally not claimable for routine standalone iron infusion, so patients will usually need to pay for the treatment themselves.
Yes. The procedure requires no sedation and causes no impairment. You can drive yourself home after the post-infusion rest period. If you experience dizziness during your infusion, please let the clinic team know and arrange alternative transport just in case.
Iron infusion is not suitable for everyone. It is not recommended for patients with iron overload conditions (such as haemochromatosis), active bacterial infections, or prior serious allergic reactions to IV iron. Your DR+ GP will review your full medical history before prescribing the treatment.
Many patients require only a single session. The dose is calculated based on your ferritin levels, haemoglobin, and body weight. Patients with ongoing iron losses may need periodic repeat infusions. Your doctor will advise based on your blood results and clinical situation.
Updated on 8 April 2026; Medically reviewed by Dr. Seah Heap Yong, MBBS (Sg) | GDGM (Sg) | GD Acupuncture (Sg)
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