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Numark Folic Acid 400mcg Tablets 90

Numark Folic Acid 400mcg Tablets 90

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  • 5. Supports cardiovascular risk reduction
  • 6. Over 22 million patients treated with semaglutide-based therapies since 2018

  • ✔️ Supports neural tube development in early pregnancy
  • ✔️ Reduces risk of spina bifida and related birth defects
  • ✔️ 400mcg daily dose — NHS recommended for pregnancy planning
  • ✔️ 90-tablet pack provides a three-month supply
  • ✔️ Suitable for vegetarians and available without prescription

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What Are Numark Folic Acid 400mcg Tablets?

 

If you are planning a pregnancy or are in the early weeks of one, you have probably already heard about folic acid. Folic acid 400mcg tablets are one of the most widely recommended supplements in the UK, and for good reason. The NHS advises all women who are trying to conceive to take a daily 400mcg folic acid supplement, starting at least 12 weeks before conception and continuing through the first trimester. Numark Folic Acid 400mcg Tablets offer a simple, affordable way to meet that recommendation — 90 tablets for just £1.99. You can find them alongside other vitamins and supplements at Cured Pharmacy.

Folic acid is the synthetic form of folate, a B vitamin (B9) that occurs naturally in foods such as leafy green vegetables, beans, and fortified cereals. Because it can be difficult to get enough folate from diet alone — especially during the critical early weeks of pregnancy — a daily supplement is strongly recommended. This product is suitable for adults and is available over the counter without a prescription.

 

How Do Numark Folic Acid 400mcg Tablets Work?

 

Folic acid plays a central role in several key biological processes. Once absorbed, it is converted into its active form (5-methyltetrahydrofolate) and gets to work at a cellular level. Here is how it supports your body:

  • It helps the body produce and maintain new cells, which is especially important during rapid growth phases such as pregnancy.
  • It supports the synthesis and repair of DNA and RNA.
  • It works alongside vitamin B12 to form healthy red blood cells, helping to prevent a type of anaemia called megaloblastic anaemia.
  • Crucially, adequate folate levels in early pregnancy significantly reduce the risk of neural tube defects (NTDs) such as spina bifida and anencephaly in the developing baby.

The neural tube forms within the first 28 days of pregnancy — often before a woman even knows she is pregnant. That is precisely why starting supplementation before conception matters so much.

 

Who Should Use Numark Folic Acid 400mcg Tablets?

 

These tablets are suitable for a range of people, not just those who are pregnant. Anyone who may benefit from additional folate intake could consider this supplement. That said, always check with your GP or pharmacist if you have an underlying health condition.

  • Women who are trying to conceive or are in the first 12 weeks of pregnancy.
  • Women of childbearing age who are not using contraception.
  • Adults who have a diet low in folate-rich foods.
  • People with certain medical conditions that affect folate absorption, such as coeliac disease (under medical supervision).

Women at higher risk of having a pregnancy affected by a neural tube defect — for example, those with a personal or family history of NTDs, those with diabetes, or those taking certain epilepsy medicines — may need a higher dose of 5mg, which requires a prescription. Speak to your GP if this applies to you.

 

How Does Numark Folic Acid Compare to Other Folic Acid Supplements?

 

Feature Numark Folic Acid 400mcg (90 tablets) Typical Branded Folic Acid (30 tablets)
Strength 400mcg 400mcg
Pack size 90 tablets 30 tablets
Approximate cost £1.99 £3.00–£5.00
Prescription required No No

 

Is Numark Folic Acid 400mcg Suitable for Vegans and How Should It Be Stored?

 

Numark Folic Acid 400mcg Tablets are suitable for vegetarians. If you follow a vegan lifestyle, check the product label or contact the manufacturer to confirm excipient suitability, as tablet coatings can vary. Store the tablets below 25°C in a dry place, away from direct sunlight, and keep them out of the reach and sight of children. Do not use after the expiry date printed on the packaging.

It is worth noting that folic acid 400mcg tablets are widely considered safe and well tolerated at this dose. However, if you are taking medicines for epilepsy, methotrexate, or sulfasalazine, speak to your pharmacist before starting supplementation, as interactions are possible. You can also explore our women's health range for related products that may support your wellbeing during pregnancy planning.

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

Numark Folic Acid 400mcg Tablets 90 specifications
Treatment category Vitamins and supplements / Pregnancy support
Mechanism of action Supports DNA synthesis, cell division, and red blood cell formation; reduces risk of neural tube defects
Effective for Prevention of neural tube defects; folate supplementation
Suitable for Adults; women planning pregnancy or in first trimester
Active ingredient Folic acid 400 micrograms
Pack size 90 tablets
Strength 400mcg
UK classification General Sale List (GSL)
Drug class B vitamin (folate)
Preparation Tablet
Route of administration Oral

Specifications of Numark Folic Acid 400mcg Tablets 90

 

What Is Numark Folic Acid 400mcg and What Is It Used For?

 

Numark Folic Acid 400mcg Tablets contain folic acid, a synthetic form of folate (vitamin B9). They are used primarily to reduce the risk of neural tube defects — serious birth conditions affecting the brain and spine — in developing babies. The NHS recommends that all women who could become pregnant take a daily 400mcg folic acid supplement. Beyond pregnancy, folic acid also supports the production of healthy red blood cells and helps prevent folate-deficiency anaemia.

This is an over-the-counter (OTC) supplement available without a prescription. It is classified as a General Sale List (GSL) medicine in the UK, meaning it can be purchased from pharmacies and other retail outlets.

 

What Do You Need to Know Before Using Numark Folic Acid 400mcg?

 

Before starting any supplement, it is sensible to check whether it is right for you. Folic acid at 400mcg is generally very safe, but there are some situations where caution is needed.

Do not take this product if:

  • You are allergic to folic acid or any of the tablet's other ingredients.
  • You have been diagnosed with a tumour that is folate-dependent (seek medical advice).
  • You have untreated vitamin B12 deficiency — folic acid can mask the symptoms of B12 deficiency anaemia, potentially delaying diagnosis and allowing neurological damage to progress.

Speak to your GP or pharmacist before taking if:

  • You are taking antiepileptic medicines (e.g. phenytoin, carbamazepine, valproate) — folic acid may affect how these medicines work.
  • You are taking methotrexate for cancer, rheumatoid arthritis, or psoriasis.
  • You are taking sulfasalazine for inflammatory bowel disease or rheumatoid arthritis.
  • You have coeliac disease or another condition affecting nutrient absorption.

 

How Should You Use Numark Folic Acid 400mcg?

 

Using this supplement correctly is straightforward. Follow these steps:

  1. Take one tablet daily, swallowed whole with a glass of water.
  2. You can take it with or without food — whichever suits you best.
  3. Try to take it at the same time each day to build a consistent habit.
  4. Do not take more than the recommended dose unless directed by your doctor.
  5. If you are pregnant or planning a pregnancy, continue taking it until at least the end of week 12 of pregnancy.
Indication Age Group Dose Frequency
Pregnancy planning / first trimester Adult women 400mcg Once daily
General folate supplementation Adults 400mcg Once daily
High-risk pregnancy (NTD history, diabetes, epilepsy medicines) Adult women 5mg (prescription only) Once daily — GP prescribed

If you are unsure whether 400mcg is the right dose for your situation, speak to your GP before starting. You may also find it helpful to browse our baby and toddler range for other products to support you through pregnancy and beyond.

 

What Are the Possible Side Effects of Numark Folic Acid 400mcg?

 

Folic acid at 400mcg is one of the most well-tolerated supplements available. Serious side effects are rare. That said, it is worth knowing what to look out for.

Common side effects (may affect up to 1 in 10 people):

  • Mild nausea
  • Loss of appetite
  • Bloating or wind (uncommon but reported)

Less common side effects:

  • Bitter taste in the mouth
  • Sleep disturbances (very rarely reported at standard doses)
  • Skin reactions such as rash or itching — stop taking and seek advice if this occurs

Allergic reactions to folic acid are very rare but can include swelling of the face, lips, or throat, difficulty breathing, or a severe skin rash. If you experience any of these, stop taking the tablets immediately and seek urgent medical attention.

 

How Should You Store Numark Folic Acid 400mcg?

 

  • Store below 25°C in a cool, dry place.
  • Keep away from direct sunlight and moisture.
  • Keep out of the reach and sight of children.
  • Do not use after the expiry date printed on the packaging.
  • Do not store in the bathroom or near a sink — humidity can affect tablet quality.
  • Do not dispose of medicines via wastewater or household waste — return unused tablets to your pharmacy.

If you have any questions about storage or suitability, your pharmacist at Cured Pharmacy is always happy to help. You can also explore our full range of vitamins and supplements for other products to support your health.

Written and reviewed by our qualified team

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 Numark Folic Acid 400mcg Tablets online in the UK?

You can buy Numark Folic Acid 400mcg Tablets directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for just £1.99 for 90 tablets. No prescription is needed, and they are dispatched quickly to your door. You can also find them alongside other vitamins and supplements on our website.

How does folic acid work in the body?

Folic acid is converted in the body to its active form, 5-methyltetrahydrofolate, which is essential for DNA synthesis, cell division, and the production of healthy red blood cells. It plays a particularly critical role in the early weeks of pregnancy, when the baby's neural tube is forming. Without adequate folate, the neural tube may not close properly, leading to conditions such as spina bifida.

When should I start taking folic acid before pregnancy?

The NHS recommends starting folic acid at least 12 weeks before you begin trying to conceive, so that your folate levels are already optimal when conception occurs. The neural tube forms within the first 28 days of pregnancy — often before you know you are pregnant — so early supplementation is key. Continue taking it until at least the end of week 12 of pregnancy.

What is the correct dose of folic acid 400mcg tablets for pregnancy?

For most women, the standard recommended dose is one 400mcg tablet daily. Women at higher risk of neural tube defects — for example, those with a personal or family history of NTDs, those with diabetes, or those taking certain epilepsy medicines — may need a higher dose of 5mg, which is only available on prescription. Always speak to your GP if you are unsure which dose is right for you.

Can men take folic acid 400mcg tablets?

Yes, folic acid is not exclusively for women. It supports general health in adults of all genders, including red blood cell production and DNA synthesis. Some research suggests folate may also play a role in male fertility, though the evidence is still developing. If you are considering it for a specific health reason, speak to your GP or pharmacist.

What are the side effects of folic acid 400mcg tablets?

Folic acid at 400mcg is generally very well tolerated, and most people experience no side effects at all. Occasionally, mild nausea or loss of appetite may occur. Allergic reactions are very rare but can include skin rash, itching, or swelling — if this happens, stop taking the tablets and seek medical advice promptly.

What happens if I miss a dose of folic acid?

If you miss a dose, take it as soon as you remember — unless it is nearly time for your next scheduled dose, in which case simply skip the missed one. Never take a double dose to compensate. Missing the occasional tablet is unlikely to cause harm, but try to take it consistently each day for the best results.

How long should I take folic acid for?

For pregnancy prevention of neural tube defects, the NHS advises taking folic acid from before conception until at least 12 weeks pregnant. If you are taking it for general health or another medical reason, follow your doctor or pharmacist's guidance. There is no established harm in taking 400mcg long-term, but it is always worth reviewing your supplement routine with a healthcare professional periodically.

Is folic acid 400mcg safe to take during the whole pregnancy?

The NHS specifically recommends folic acid supplementation up to 12 weeks of pregnancy, as this is when the neural tube develops. After 12 weeks, many women switch to a pregnancy multivitamin that contains folic acid alongside other nutrients such as vitamin D. Speak to your midwife or GP about what is most appropriate for the rest of your pregnancy.

Can I take folic acid if I am already taking a pregnancy multivitamin?

Most pregnancy multivitamins already contain 400mcg of folic acid, so you would not normally need to take an additional separate supplement. Taking too much folic acid is unlikely to cause harm at low doses, but it is best to check the label of your multivitamin and speak to your pharmacist if you are unsure. Avoid taking more than 1mg (1,000mcg) per day unless prescribed by your doctor.

Does folic acid interact with any medicines?

Yes, folic acid can interact with certain medicines. Known interactions include antiepileptic drugs (such as phenytoin, carbamazepine, and valproate), methotrexate, and sulfasalazine. If you are taking any of these, speak to your GP or pharmacist before starting folic acid supplementation. Your doctor may need to adjust your treatment or monitor you more closely.

Is Numark Folic Acid 400mcg suitable for vegetarians or vegans?

Numark Folic Acid 400mcg Tablets are suitable for vegetarians. If you follow a vegan diet, check the product packaging or contact Numark directly to confirm that all excipients (inactive ingredients) meet vegan standards, as tablet coatings can sometimes contain animal-derived ingredients. You can also browse our vegan range for products confirmed suitable for a vegan lifestyle.

What are the alternatives to Numark Folic Acid 400mcg Tablets?

There are several other brands of folic acid 400mcg available in the UK, including own-brand pharmacy versions and branded options such as Pregnacare or Seven Seas. All contain the same active ingredient at the same dose, so the main differences are price and pack size. Numark offers excellent value at £1.99 for 90 tablets compared to many branded alternatives.

What are the latest studies on folic acid and pregnancy?

The evidence supporting folic acid supplementation before and during early pregnancy is well established and consistently endorsed by the NHS, NICE, and the WHO. Research continues to explore additional potential benefits of folate, including its role in cardiovascular health and cognitive function, though the primary and most robust evidence remains its role in preventing neural tube defects. Always rely on NHS guidance for pregnancy supplementation decisions.

Who is eligible to buy folic acid 400mcg tablets without a prescription?

Any adult in the UK can purchase folic acid 400mcg tablets over the counter without a prescription, as they are classified as a General Sale List (GSL) medicine. They are suitable for women planning a pregnancy, those in the first trimester, and adults seeking general folate supplementation. Women who need a higher dose (5mg) due to increased risk factors will require a prescription from their GP. You can also explore our women's health range for related products.

How Should You Use Numark Folic Acid 400mcg Tablets?

Using Numark Folic Acid 400mcg Tablets is simple, but taking them consistently is what matters most. Follow these steps to get the most from your supplement:

Consistency is key with folic acid. Because it is a water-soluble vitamin, your body does not store large amounts of it, so daily intake is important to maintain adequate levels.

What Is the Correct Dose of Numark Folic Acid 400mcg Tablets?

The dose recommended by the NHS for most adults — particularly women planning a pregnancy or in the first trimester — is 400 micrograms (mcg) once daily. This is exactly the dose provided by one Numark tablet. Some women require a higher dose; this is determined by their GP based on individual risk factors.

When Is the Best Time to Use Numark Folic Acid 400mcg Tablets?

There is no single "best" time of day to take folic acid — what matters most is that you take it at the same time every day. Many people find it easiest to take it in the morning alongside breakfast, as this helps build a reliable habit. If morning sickness makes this difficult in early pregnancy, try taking it in the evening with your evening meal instead.

Taking it with food can also help minimise any mild stomach discomfort, though this is uncommon at this dose. The key is simply to find a time that works for your daily routine and stick to it.

How Long Can You Use Numark Folic Acid 400mcg Tablets For?

For pregnancy-related use, the NHS recommends taking folic acid from at least 12 weeks before conception through to the end of the first trimester (12 weeks of pregnancy). After 12 weeks, many women transition to a pregnancy multivitamin that includes folic acid alongside other nutrients such as vitamin D and iron.

For general health supplementation, folic acid at 400mcg can be taken long-term without known harm. However, it is good practice to review your supplement routine with your GP or pharmacist periodically, particularly if your health circumstances change.

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

What Are the Most Common Side Effects of Numark Folic Acid 400mcg Tablets?

Folic acid at 400mcg is one of the most well-tolerated supplements available in the UK. The vast majority of people who take it experience no side effects at all. That said, a small number of people may notice mild digestive symptoms, particularly when first starting the supplement.

  • Mild nausea
  • Loss of appetite
  • Bloating or flatulence
  • Bitter or unpleasant taste in the mouth

These effects are generally mild and tend to resolve on their own. Taking the tablet with food can help reduce any stomach discomfort.

What Are the Less Common Side Effects of Numark Folic Acid 400mcg Tablets?

Less common side effects are rarely reported at the standard 400mcg dose. They are more likely to occur at higher doses (such as 5mg prescribed for high-risk pregnancies). If you notice any of the following, speak to your pharmacist:

  • Sleep disturbances or difficulty sleeping
  • Irritability or mood changes (very rarely reported)
  • Mild skin reactions such as redness or itching
  • Abdominal cramps

What Are the Serious Side Effects of Numark Folic Acid 400mcg Tablets?

Serious side effects from folic acid at 400mcg are extremely rare. However, you should be aware of the following situations that require prompt medical attention.

An important concern is that folic acid can mask the symptoms of vitamin B12 deficiency anaemia. If you have undiagnosed or untreated B12 deficiency, taking folic acid may correct the blood abnormalities associated with it while allowing neurological damage to continue undetected. This is why it is important to speak to your GP if you have any concerns about B12 levels before starting supplementation.

Allergic reactions to folic acid are very uncommon but can include:

  • Swelling of the face, lips, tongue, or throat
  • Difficulty breathing or swallowing
  • Severe skin rash or hives
  • Dizziness or feeling faint

What Should You Do If You Experience Side Effects?

If you experience mild side effects such as nausea, try taking the tablet with food or at a different time of day. Most mild symptoms settle within a few days as your body adjusts. If symptoms persist or worsen, stop taking the tablets and speak to your pharmacist or GP.

If you experience any signs of an allergic reaction — such as swelling, difficulty breathing, or a severe rash — stop taking the tablets immediately and seek urgent medical attention or call 999. Do not wait to see if symptoms improve on their own.

Can Numark Folic Acid 400mcg Tablets Interact With Other Medicines?

Yes, folic acid can interact with certain medicines. The most clinically significant interactions include antiepileptic drugs such as phenytoin, carbamazepine, and sodium valproate — folic acid may reduce the effectiveness of these medicines, and these medicines may also reduce folate levels. Methotrexate (used for cancer, rheumatoid arthritis, and psoriasis) works by blocking folate metabolism, so taking folic acid alongside it requires careful medical supervision. Sulfasalazine can also reduce folate absorption.

Always tell your GP or pharmacist about all medicines, supplements, and herbal products you are taking before starting folic acid. This includes over-the-counter products and vitamins.

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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