Iron Deficiency Anaemia Treatment in Cardiff
It's more than "low iron." When your body can't make enough healthy red blood cells, everything suffers — your energy, your concentration, your ability to get through the day. If you've been told your iron is low but haven't been offered real treatment, you deserve better. IronOx Clinic in Cardiff treats iron deficiency anaemia directly, with no GP referral needed.
The Mews, 38 Cathedral Road, Cardiff CF11 9LL · Serving Cardiff and all of South Wales
What is iron deficiency anaemia?
Iron deficiency anaemia is a condition where your body doesn't have enough iron to produce adequate haemoglobin — the protein in red blood cells that carries oxygen to your tissues. Without enough haemoglobin, your organs and muscles don't get the oxygen they need. That's why you feel exhausted, breathless, and foggy — not because you're unfit or lazy, but because your blood literally can't do its job.
It's the most common nutritional deficiency in the world. In the UK, iron deficiency anaemia affects an estimated 3% of men and 8% of women, with rates significantly higher among women of reproductive age, pregnant women, and people with chronic health conditions. The World Health Organisation classifies it as a public health concern even in high-income countries.
Iron deficiency exists on a spectrum. First, your iron stores (ferritin) drop. Then your body starts struggling to make red blood cells. By the time your haemoglobin falls and you're diagnosed with anaemia, the deficiency has been building for weeks or months. Many people experience debilitating symptoms long before their blood results cross the "abnormal" threshold.
Symptoms of iron deficiency anaemia
Iron deficiency anaemia affects your whole body. If several of these feel familiar, your iron levels may need investigating — even if your GP said they were "borderline."
Why iron deficiency becomes anaemia
Your body uses iron constantly — to carry oxygen, support muscle function, produce energy, and maintain your immune system. When iron intake can't keep up with demand, your stores gradually deplete. Once those stores are empty, your body can no longer produce enough haemoglobin, and anaemia develops.
The most common causes include heavy menstrual bleeding, pregnancy, chronic conditions like coeliac disease or inflammatory bowel disease, and diets low in bioavailable iron. Sometimes it's a combination — moderate periods plus poor absorption plus a demanding lifestyle.
Many patients are prescribed oral iron tablets as a first step. But oral iron has well-documented limitations. Absorption rates are low — often around 10% of the dose — and side effects like nausea, constipation, and stomach cramps cause up to 70% of patients to stop taking them. Even when tolerated, tablets can take 3–6 months to correct anaemia, during which time you continue to feel unwell.
For patients whose anaemia persists despite oral iron, or who can't tolerate tablets, IV iron is a NICE-recommended alternative that restores iron stores in a single session.
Common causes
- Heavy or prolonged periods
- Pregnancy and postpartum
- Coeliac disease or IBD
- Gastric surgery or bypass
- Chronic kidney disease
- Vegetarian or vegan diet
- Frequent blood donation
- Endurance exercise
Treatment options for iron deficiency anaemia
Dietary changes
Red meat, dark leafy greens, lentils, and fortified cereals can help maintain iron levels. Vitamin C improves absorption. However, diet alone is rarely enough to correct established anaemia — the amounts needed are simply too high.
Best for: prevention and maintenance after treatment
Oral iron supplements
Ferrous sulphate or ferrous fumarate tablets are the standard first-line treatment. They work for some people, but side effects are common — nausea, constipation, black stools, stomach pain. Even when tolerated, correction can take months.
Best for: mild deficiency with no absorption issues
IV iron infusion
A single 30-minute infusion delivers up to 1000mg of iron directly into your bloodstream — bypassing the gut entirely. No nausea, no constipation, no months of waiting. NICE-recommended for patients who don't respond to or can't tolerate oral iron.
Best for: moderate-to-severe anaemia, oral iron intolerance, malabsorption
The right treatment depends on your individual situation. Dr Ros will review your blood results, symptoms, and medical history to recommend the most appropriate option.
How IronOx Clinic treats iron deficiency anaemia in Cardiff
Specialist assessment, not a tick-box
Dr Ros reviews your full blood panel — ferritin, transferrin saturation, haemoglobin, inflammatory markers — not just a single number. She looks at your symptoms, your history, and the whole picture before recommending treatment.
Same-week appointments in Cardiff
NHS haematology referrals in Wales can take months. At our Cardiff clinic on Cathedral Road, you can book directly — no GP referral needed, no waiting list. Most patients across Cardiff and South Wales are seen within the same week.
Rapid correction in one visit
A single IV iron infusion can deliver what would take 5+ months of oral supplements. The infusion takes 30 minutes, with 30 minutes of monitoring afterwards. Most patients are in and out within an hour.
Continuity of care
Your GP receives a full clinical report within 24 hours. If your anaemia has an underlying cause that needs further investigation, Dr Ros will flag it and guide next steps — not just treat the symptom.
Real patient experience
"Excellent professional treatment, very friendly and approachable. Definitely will return."
Iron deficiency anaemia — common questions
Iron deficiency means your iron stores (ferritin) are low. Iron deficiency anaemia is the next stage — your haemoglobin has dropped because there isn't enough iron to produce healthy red blood cells. You can have iron deficiency without anaemia, but anaemia always means the deficiency has progressed further.
A blood test measuring your full blood count (FBC), ferritin, and transferrin saturation. Low haemoglobin combined with low ferritin confirms the diagnosis. At IronOx Clinic, Dr Ros reviews your blood results in full — not just a single number in isolation.
Oral iron has a high rate of side effects — nausea, constipation, stomach pain — and even when tolerated, absorption can be as low as 10%. If you have a gut condition, heavy periods, or chronic blood loss, tablets often can't keep up with how fast you're losing iron. IV iron bypasses the gut entirely and restores iron stores in a single session.
Most patients see haemoglobin levels start to rise within 2–3 weeks, with full correction typically within 6–8 weeks. Many patients report feeling significantly better within 1–2 weeks of their infusion.
It depends on the underlying cause. If the cause is addressed — for example, treating heavy periods or a gut condition — your levels may remain stable. If the cause is ongoing, you may need periodic monitoring and potentially further treatment. Dr Ros will discuss long-term management at your appointment.
Don't wait for it to get worse
Iron deficiency anaemia is treatable. A single consultation with a specialist could be the turning point. No referral needed — appointments available this week.