How does ferrous sulfate work?
Ferrous sulfate replenishes iron stores in the body, allowing the production of healthy red blood cells and preventing iron deficiency-related symptoms.
What is ferrous sulfate used to treat?
Ferrous sulfate is commonly prescribed for:
- Iron deficiency anaemia (low iron levels causing fatigue and weakness)
- Preventing iron deficiency in people at risk (e.g., during pregnancy or after significant blood loss)
- Supporting recovery from conditions that cause low iron levels (such as heavy periods or gastrointestinal disorders)
Who can take ferrous sulfate?
Ferrous sulfate is suitable for most adults and children, especially those with low iron levels or increased iron needs.
Who might not be able to take ferrous sulfate?
Ferrous sulfate may not be suitable if you:
- Have iron overload conditions (such as haemochromatosis)
- Have a history of stomach ulcers or inflammatory bowel disease (IBD)
- Are taking medications that interact with iron (such as certain antibiotics or thyroid medications)
Can I take ferrous sulfate if I’m pregnant or breastfeeding?
Yes, ferrous sulfate is safe during pregnancy and breastfeeding, and it is often recommended to prevent anaemia during pregnancy.
What if I miss a dose?
If you forget a dose, take it as soon as you remember. If it’s close to your next dose, skip the missed one—do not take two doses at once.
How effective is ferrous sulfate?
Ferrous sulfate is highly effective at increasing iron levels and treating anaemia. It may take a few weeks to months to restore normal iron levels.
What should I do if I take too much?
Taking too much ferrous sulfate can cause iron poisoning, especially in children. Symptoms include stomach pain, vomiting, diarrhoea, and dizziness. If you suspect an overdose, seek medical help immediately.
What dose of ferrous sulfate is usually taken?
- For iron deficiency anaemia: 200mg two or three times daily
- For prevention of iron deficiency: One tablet daily
Your doctor will advise on the best dose for your condition.
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What are the side effects of ferrous sulfate?
Common side effects include:
- Constipation or diarrhoea
- Stomach discomfort
- Dark or black stools (this is normal and harmless)
- Nausea
Serious side effects, such as severe stomach pain or allergic reactions, require urgent medical attention.
How should I take ferrous sulfate?
Ferrous sulfate is taken as tablets or liquid, usually on an empty stomach for better absorption. If it causes stomach upset, it can be taken with food.
When should ferrous sulfate be taken?
It’s best to take ferrous sulfate one hour before or two hours after meals, as some foods and drinks (like tea, coffee, and dairy) can reduce iron absorption.
What are the brand names for ferrous sulfate?
Ferrous sulfate is available as a generic medicine, but some branded versions include:
- Ferrograd
- Ironorm Drops
Final thoughts
Ferrous sulfate is an effective iron supplement for treating and preventing anaemia. To get the best results, take it as prescribed, avoid certain foods that interfere with absorption, and speak to your doctor if you experience side effects.
