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Vitabiotics Feroglobin B12 Slow Release - 30 Capsules

Vitabiotics Feroglobin B12 Slow Release - 30 Capsules

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  • ✔️ Slow release iron formula for gentle, stomach-friendly daily supplementation
  • ✔️ Combines iron, B12, folic acid and zinc in one capsule
  • ✔️ Supports normal red blood cell formation and oxygen transport
  • ✔️ Helps reduce tiredness and fatigue associated with low iron
  • ✔️ Suitable for vegetarians and adults over 12 years

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What Are Feroglobin B12 Slow Release Capsules?

 

Feeling constantly tired, struggling to concentrate, or noticing your energy dip earlier than it used to? These are common signs that your body might not be getting enough iron or vitamin B12. Feroglobin B12 slow release capsules from Vitabiotics are a well-established over-the-counter supplement designed to address exactly that. Each capsule delivers a carefully balanced combination of iron (as ferrous sulphate), vitamin B12, folic acid, and zinc — nutrients that play a central role in normal red blood cell formation and energy metabolism. You can find this and other essential supplements in our vitamins and supplements collection.

Iron deficiency is one of the most common nutritional deficiencies in the UK, particularly affecting women of childbearing age, pregnant women, vegetarians, and vegans. The NHS notes that a lack of iron can lead to iron deficiency anaemia, causing symptoms such as fatigue, shortness of breath, and pale skin. At just £5.99 for 30 capsules, this product offers an accessible, gentle way to support your daily iron and B12 intake.

 

How Do Feroglobin B12 Slow Release Capsules Work?

 

The key feature here is the slow release technology. Unlike standard iron tablets that release their full dose immediately — which can irritate the stomach lining — these capsules are designed to release iron gradually over several hours. This gentler delivery helps reduce the gastrointestinal side effects that put many people off iron supplementation altogether.

  • Iron (ferrous sulphate): Supports normal formation of red blood cells and haemoglobin, and contributes to normal oxygen transport in the body.
  • Vitamin B12: Contributes to normal red blood cell formation, normal neurological function, and the reduction of tiredness and fatigue.
  • Folic acid: Works alongside B12 to support normal blood cell production and is particularly important during pregnancy.
  • Zinc: Contributes to normal cognitive function and supports the immune system.

Together, these nutrients work synergistically. B12 and folic acid are needed for DNA synthesis in developing red blood cells, while iron is the core component of haemoglobin — the protein that carries oxygen around your body.

 

Who Should Consider Using Feroglobin B12 Slow Release Capsules?

 

This supplement is suitable for a wide range of adults and young people over 12 years. It's particularly relevant if you've been told by your GP that your iron or B12 levels are on the low side, or if you simply feel run-down and suspect your diet isn't providing enough of these nutrients. It's worth noting that this is a food supplement, not a treatment for diagnosed iron deficiency anaemia — if you suspect anaemia, always speak to your GP first.

  • Women of childbearing age with heavy periods
  • Vegetarians and vegans who may have lower dietary iron and B12 intake
  • Pregnant or breastfeeding women (consult your midwife or GP first)
  • People over 50, as B12 absorption naturally declines with age
  • Those recovering from illness or surgery who need nutritional support

 

How Do Feroglobin B12 Slow Release Capsules Compare to Standard Iron Tablets?

 

Feature Feroglobin B12 Slow Release Standard Iron Tablet (e.g. Ferrous Sulphate 200mg)
Release mechanism Slow release over several hours Immediate release
Additional nutrients B12, folic acid, zinc Iron only (typically)
GI tolerability Generally better tolerated Higher risk of nausea and constipation
Prescription required No — OTC supplement Often prescribed by GP
Suitable for vegetarians Yes Varies by brand

 

Is Feroglobin B12 Suitable for Vegetarians and How Should It Be Stored?

 

Yes — Feroglobin B12 slow release capsules are suitable for vegetarians. They do not contain any meat-derived ingredients, making them a practical choice for those following a plant-based or vegetarian diet who are at higher risk of iron and B12 insufficiency. If you're also looking to support your hair health alongside your iron levels — since iron deficiency is a known contributor to hair loss — you might find our hair care collection useful too.

Store the capsules below 25°C in a dry place, away from direct sunlight and moisture. Keep the pack out of reach and sight of children. Do not use after the expiry date printed on the pack.

This product is a food supplement. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Vitabiotics Feroglobin B12 Slow Release 30 Capsules specifications
Treatment category Iron and vitamin B12 supplementation
Mechanism of action Slow release delivery of iron, B12, folic acid, and zinc to support red blood cell formation and energy metabolism
Effective for Supporting normal iron and B12 levels; reducing tiredness and fatigue
Suitable for Adults and children over 12 years; vegetarians
Active ingredients Ferrous sulphate, Vitamin B12 (cyanocobalamin), Folic acid, Zinc
Pack size 30 capsules
UK classification Food supplement (not a licensed medicine)
Drug class Iron and haematinic supplement
Preparation Slow release capsule
Route of administration Oral

Specifications of Vitabiotics Feroglobin B12 Slow Release 30 Capsules

 

What Is Feroglobin B12 and What Is It Used For?

 

Vitabiotics Feroglobin B12 Slow Release is an oral food supplement containing iron (as ferrous sulphate), vitamin B12 (cyanocobalamin), folic acid, and zinc. It is used to help maintain adequate levels of these nutrients in people whose diet may not provide sufficient amounts. Iron contributes to normal formation of red blood cells and haemoglobin, and to normal oxygen transport in the body. Vitamin B12 and folic acid support normal red blood cell formation and help reduce tiredness and fatigue. Zinc contributes to normal cognitive function and immune system support.

This product is not a licensed medicine and is not intended to diagnose, treat, or cure iron deficiency anaemia. If you suspect you have anaemia, you should see your GP for a blood test and appropriate treatment. Feroglobin B12 slow release capsules are best used as a daily nutritional supplement to top up dietary intake of these key nutrients.

 

What Do You Need to Know Before Using Feroglobin B12 Slow Release Capsules?

 

Before starting any new supplement, it's important to check whether it's right for you. Do not take this product if any of the following apply:

  • You have haemochromatosis (iron overload disorder) or another iron storage condition
  • You have haemolytic anaemia or any condition causing increased red blood cell breakdown
  • You are allergic to any of the ingredients listed on the label
  • You are under 12 years of age
  • You have been advised by your doctor to avoid iron supplements

Speak to your GP or pharmacist before taking this supplement if you are pregnant, breastfeeding, or have any chronic medical condition. The following medicines may interact with iron supplements — always leave a gap of at least two hours between taking iron and any of these:

  • Tetracycline or quinolone antibiotics (e.g. ciprofloxacin, doxycycline)
  • Levothyroxine (thyroid medication)
  • Levodopa (used in Parkinson's disease)
  • Antacids and proton pump inhibitors (e.g. omeprazole)
  • Bisphosphonates (e.g. alendronic acid)
  • Penicillamine (used in rheumatoid arthritis)

Vitamin C (ascorbic acid) can enhance iron absorption, so taking this supplement with a glass of orange juice may be beneficial. Tea, coffee, and dairy products can reduce iron absorption and should ideally be avoided around the time of taking the capsule.

 

How Should You Use Feroglobin B12 Slow Release Capsules?

 

  1. Take one capsule daily with a full glass of water.
  2. Swallow the capsule whole — do not crush, chew, or open it.
  3. Take with or shortly after food to reduce the risk of stomach upset.
  4. Try to take it at the same time each day to build a consistent routine.
  5. Avoid taking with tea, coffee, milk, or antacids.
Indication Age Group Dose Frequency
General iron and B12 supplementation Adults and children over 12 1 capsule Once daily
Not recommended Under 12 years

Do not exceed the stated dose. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. If you are concerned about your iron levels, speak to your GP — they can arrange a simple blood test to check your haemoglobin and ferritin levels.

 

What Are the Possible Side Effects of Feroglobin B12 Slow Release Capsules?

 

As with all iron-containing supplements, some people may experience side effects, particularly in the digestive system. The slow release formulation is designed to minimise these, but they can still occur. If you experience any severe or persistent symptoms, stop taking the capsules and speak to your pharmacist or GP. You might also find it helpful to browse our IBS and cramps collection if digestive discomfort is an ongoing concern for you.

Common side effects:

  • Dark or black-coloured stools (this is harmless and expected with iron supplements)
  • Nausea or stomach discomfort, especially if taken on an empty stomach
  • Constipation

Less common side effects:

  • Diarrhoea
  • Abdominal cramping or bloating
  • Heartburn
  • Allergic reactions (rash, itching, swelling) — seek medical attention immediately if these occur

If you notice bright red blood in your stools or experience severe abdominal pain, stop taking the supplement and seek urgent medical advice, as these are not typical side effects of iron supplementation.

 

How Should You Store Feroglobin B12 Slow Release Capsules?

 

Correct storage helps maintain the quality and effectiveness of the capsules throughout their shelf life. Follow these guidelines:

  • Store below 25°C in a cool, dry place
  • Keep away from direct sunlight and sources of heat or moisture
  • Keep the pack tightly closed when not in use
  • Keep out of reach and sight of children — iron overdose in young children can be serious
  • Do not use after the expiry date printed on the pack
  • Do not store in the bathroom or near a sink

If you need to dispose of unused capsules, do not flush them down the toilet or throw them in household waste. Return them to your local pharmacy for safe disposal. For more information on managing your overall health and wellbeing, explore our women's health collection, which includes a range of products relevant to those most commonly affected by iron deficiency.

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Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy Feroglobin B12 slow release capsules online in the UK?

You can buy Vitabiotics Feroglobin B12 Slow Release 30 Capsules directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for just £5.99. No prescription is needed — it is available as an over-the-counter food supplement. You'll find it alongside other iron and nutritional products in our vitamins and supplements collection.

How do Feroglobin B12 slow release capsules work in the body?

The capsules use a slow release mechanism to deliver iron gradually over several hours, which is gentler on the stomach lining than immediate-release iron tablets. Iron supports normal haemoglobin production and oxygen transport, while vitamin B12 and folic acid contribute to normal red blood cell formation and help reduce tiredness and fatigue. Zinc also plays a supporting role in normal cognitive function and immune health.

How do I take Feroglobin B12 slow release capsules step by step?

Take one capsule daily with a full glass of water, ideally with or shortly after a meal to reduce the chance of stomach upset. Swallow the capsule whole — crushing or chewing it will destroy the slow release mechanism and may increase side effects. Try to take it at the same time each day to help you remember.

What is the best time of day to take Feroglobin B12 slow release capsules?

Most people find taking the capsule with breakfast or lunch works well, as food helps reduce the risk of nausea. Avoid taking it alongside tea, coffee, or dairy products, as these can reduce iron absorption. If you take other medications in the morning — particularly levothyroxine or antibiotics — leave at least a two-hour gap before taking this supplement.

What are the side effects of Feroglobin B12 slow release capsules?

The most common side effects are dark or black-coloured stools (which is harmless and expected), nausea, and constipation — all typical with iron-containing supplements. The slow release formulation is designed to reduce these effects compared to standard iron tablets. If you experience severe abdominal pain, vomiting, or signs of an allergic reaction such as rash or swelling, stop taking the capsules and seek medical advice promptly.

How do I manage side effects of Feroglobin B12 slow release capsules?

Taking the capsule with food is the single most effective way to reduce nausea and stomach discomfort. If constipation is a problem, increasing your fluid and fibre intake can help. Do not crush or open the capsule, as this releases the full iron dose at once and is more likely to cause irritation.

Who is eligible to take Feroglobin B12 slow release capsules?

These capsules are suitable for adults and young people aged 12 and over who want to support their iron and B12 intake through supplementation. They are particularly relevant for women with heavy periods, vegetarians, vegans, people over 50, and those recovering from illness. They are not suitable for children under 12, or for anyone with haemochromatosis or other iron storage disorders.

What happens if I miss a dose of Feroglobin B12 slow release capsules?

If you forget to take your capsule, take it as soon as you remember — unless it is nearly time for your next dose, in which case simply skip the missed one and carry on as normal. Never take two capsules at once to compensate for a missed dose. Consistency matters more than perfection, so just continue with your usual daily routine.

Can I take Feroglobin B12 slow release capsules during pregnancy?

Iron and folic acid are both important during pregnancy, and many pregnant women are advised to take supplements containing these nutrients. However, you should always speak to your midwife or GP before starting any new supplement during pregnancy, as they will advise on the most appropriate product and dose for your individual needs. Do not self-diagnose or self-treat iron deficiency during pregnancy without professional guidance.

Are Feroglobin B12 slow release capsules suitable for vegetarians and vegans?

Yes, Feroglobin B12 slow release capsules are suitable for vegetarians. Vegetarians and vegans are among those most likely to benefit from iron and B12 supplementation, as these nutrients are found predominantly in animal-derived foods. If you follow a plant-based diet and are concerned about your nutritional intake, this supplement can be a practical daily addition to your routine.

How long should I take Feroglobin B12 slow release capsules for?

There is no fixed maximum duration for taking this supplement, as it is a food supplement rather than a licensed medicine. Many people take it continuously as part of their daily routine, particularly if their diet is consistently low in iron or B12. If you are taking it to address a suspected deficiency, your GP may recommend a specific course length based on your blood test results.

What medicines interact with Feroglobin B12 slow release capsules?

Iron can reduce the absorption of several medicines, including tetracycline and quinolone antibiotics, levothyroxine, levodopa, bisphosphonates, and penicillamine. Always leave at least a two-hour gap between taking this supplement and any of these medications. If you are unsure whether your current medicines interact with iron, speak to your pharmacist before starting.

What are the alternatives to Feroglobin B12 slow release capsules?

Alternatives include standard ferrous sulphate tablets (available on prescription or OTC), ferrous fumarate, or ferrous gluconate — all of which are forms of iron supplement but without the additional B12, folic acid, and zinc. Other Vitabiotics products such as Feroglobin Liquid may suit those who prefer not to swallow capsules. Your pharmacist can help you choose the most appropriate option based on your needs and any other medicines you take.

Can Feroglobin B12 slow release capsules help with hair loss?

Iron deficiency is a recognised contributing factor to hair loss, particularly in women, and correcting low iron levels may help support normal hair growth over time. However, this supplement is not specifically licensed or indicated for hair loss treatment. If you are concerned about hair thinning, it is worth exploring our female hair loss collection alongside speaking to your GP about a blood test to check your iron and ferritin levels.

What does the latest research say about slow release iron supplements?

Research published in clinical literature suggests that slow release iron formulations are generally better tolerated than immediate-release preparations, with fewer gastrointestinal side effects, though some studies note that absorption may be slightly lower due to the delayed release in the small intestine. For most people using iron supplements for general nutritional support rather than treating severe deficiency, the improved tolerability of slow release formulations makes them a practical and sustainable choice. Always discuss your specific situation with a healthcare professional if you have concerns about absorption or efficacy.

How Should You Use Vitabiotics Feroglobin B12 Slow Release Capsules?

Using this supplement correctly makes a real difference to both its effectiveness and your comfort. The slow release capsule is designed to be swallowed whole — never crush, chew, or open it, as doing so releases the full iron dose immediately and significantly increases the risk of stomach irritation.

Follow these steps each day:

What Is the Correct Dose of Vitabiotics Feroglobin B12 Slow Release Capsules?

The recommended dose for adults and children over 12 years is one capsule per day. Do not take more than the stated dose — taking excess iron can be harmful, and iron overdose in children can be particularly serious.

When Is the Best Time to Use Vitabiotics Feroglobin B12 Slow Release Capsules?

Taking your capsule at the same time each day helps you build a consistent habit and ensures you don't miss doses. Most people find that taking it with breakfast or lunch — when food is present in the stomach — minimises any digestive discomfort and makes the routine easier to maintain.

Avoid taking the capsule with tea, coffee, or dairy products, as tannins and calcium can inhibit iron absorption. If you want to maximise absorption, a small glass of orange juice alongside the capsule can help, as vitamin C enhances iron uptake in the gut.

How Long Can You Use Vitabiotics Feroglobin B12 Slow Release Capsules For?

As a food supplement, there is no strict maximum duration of use. Many people take it as part of their long-term daily routine, particularly if they follow a vegetarian or vegan diet or have consistently low dietary iron and B12 intake. If you are using it to address a suspected nutritional shortfall identified by your GP, they will advise on how long to continue based on follow-up blood tests.

If your symptoms — such as persistent fatigue, breathlessness, or pallor — do not improve after several weeks of supplementation, speak to your GP. These symptoms may indicate a more significant underlying condition that requires medical investigation and treatment rather than supplementation alone.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

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What Are the Most Common Side Effects of Feroglobin B12 Slow Release Capsules?

Iron supplements are well known for causing digestive side effects, and Feroglobin B12 is no exception — though the slow release formulation is specifically designed to reduce these compared to standard immediate-release iron tablets. The most frequently reported effects are mild and usually settle within a few days of starting the supplement.

  • Dark or black-coloured stools — this is harmless and expected; it simply reflects the iron passing through your digestive system
  • Nausea or stomach discomfort, particularly if taken on an empty stomach
  • Constipation

What Are the Less Common Side Effects of Feroglobin B12 Slow Release Capsules?

Some people may experience less frequent side effects that are still worth being aware of. These are generally mild but can be uncomfortable. If they persist or worsen, speak to your pharmacist.

  • Diarrhoea
  • Abdominal cramping or bloating
  • Heartburn or acid reflux
  • Metallic taste in the mouth
  • Loss of appetite

What Are the Serious Side Effects of Feroglobin B12 Slow Release Capsules?

Serious side effects are rare but require immediate medical attention if they occur. Iron overdose is a medical emergency, particularly in young children — always keep this supplement out of reach of children. Signs of iron overdose include severe vomiting, abdominal pain, drowsiness, and pale or bluish skin.

Allergic reactions to ingredients in the capsule are uncommon but possible. Seek emergency medical help if you notice any of the following after taking this supplement:

  • Swelling of the face, lips, tongue, or throat
  • Difficulty breathing or swallowing
  • Severe skin rash or hives
  • Sudden dizziness or collapse

What Should You Do If You Experience Side Effects of Feroglobin B12 Slow Release Capsules?

For mild side effects such as nausea or constipation, try taking the capsule with food and increasing your fluid and fibre intake. Do not crush or open the capsule, as this will release the full iron dose at once and is likely to worsen gastrointestinal symptoms. If side effects are persistent or significantly affecting your daily life, stop taking the supplement and speak to your pharmacist or GP.

You can also report suspected side effects from food supplements to the Food Standards Agency (FSA) or, if you believe the product has caused a serious reaction, to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk.

Can Feroglobin B12 Slow Release Capsules Interact With Other Medicines?

Yes — iron can significantly reduce the absorption of several commonly used medicines. Always leave at least a two-hour gap between taking this supplement and any of the following:

  • Tetracycline and quinolone antibiotics (e.g. doxycycline, ciprofloxacin)
  • Levothyroxine (thyroid hormone replacement)
  • Levodopa (used in Parkinson's disease)
  • Bisphosphonates (e.g. alendronic acid, used for osteoporosis)
  • Antacids and proton pump inhibitors (e.g. omeprazole, Gaviscon)
  • Penicillamine (used in rheumatoid arthritis)

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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