21st Century Vitamin C 1000mg Prolonged Release 120s

21st Century Vitamin C 1000mg Prolonged Release is a dietary supplement belonging to the water-soluble vitamin class, with Ascorbic Acid as its active ingredient — delivered through a prolonged-release formula that gradually releases the nutrient into your body over time for better absorption. If you are thinking about adding this to your daily routine, it is good to know that while it is generally well-tolerated, some people may experience side effects such as nausea, stomach upset, diarrhoea, or headache, especially when taken in high doses. This product is manufactured by 21st Century HealthCare, a trusted name in nutritional supplements, and each tablet is designed to provide a steady, time-controlled release of Vitamin C throughout the day. Whether you are buying it for yourself or a family member, you will be glad to know that it is available without a prescription and is widely used by adults looking to support their daily nutritional intake. As with any supplement, it is always a smart idea to check with your doctor or pharmacist first, especially if you have existing health conditions or are taking other medications.

How to Take 21st Century Vitamin C 1000mg Prolonged Release
Take this tablet orally with a full glass of water, preferably with or after a meal to reduce the chance of stomach discomfort. Because this is a prolonged-release tablet, it should be swallowed whole — do not crush, chew, or break the tablet, as doing so may interfere with the controlled-release mechanism and affect how the supplement works in your body. Always follow the dosage instructions on the product label or as advised by your pharmacist or healthcare provider.

Dosage of 21st Century Vitamin C 1000mg Prolonged Release
The generally recommended dosage for adults is one tablet (1000mg) once daily, unless otherwise directed by a healthcare professional. Do not exceed the stated dose without medical advice, as excessively high doses of Vitamin C over a prolonged period may lead to unwanted side effects.

Shelf Life of 21st Century Vitamin C 1000mg Prolonged Release
21st Century Vitamin C 1000mg Prolonged Release typically has a shelf life of 2 to 3 years from the date of manufacture, as indicated on the product packaging. Always check the expiry date printed on the bottle or blister pack before use, and do not consume the product if it has passed its expiry date. Proper storage conditions play an important role in maintaining the product's quality and potency throughout its shelf life.

How to Store 21st Century Vitamin C 1000mg Prolonged Release

• Store this product in a cool, dry place away from direct sunlight, heat, and moisture, ideally at a temperature below 30°C, which is especially important in Malaysia's warm and humid climate.
• Keep the bottle tightly closed when not in use and store it out of reach of children and pets at all times.
• Avoid storing the product in the bathroom or kitchen, where humidity and temperature fluctuations can degrade the quality of the tablets over time.

Active Ingredient of 21st Century Vitamin C 1000mg Prolonged Release

The sole active ingredient in this supplement is Ascorbic Acid, a synthetic form of Vitamin C that is chemically identical to the naturally occurring form found in food sources. The prolonged-release matrix ensures that the ascorbic acid is released gradually rather than all at once, which may support better tolerability and more consistent absorption compared to standard immediate-release formulations.

Side Effects of 21st Century Vitamin C 1000mg Prolonged Release
While 21st Century Vitamin C 1000mg Prolonged Release is generally considered safe for most adults when taken as directed, some individuals may experience side effects. If any of these reactions are severe or persistent, discontinue use and consult a healthcare professional.

Common Side Effects:

• Nausea or feeling of queasiness, particularly on an empty stomach
• Stomach cramps or abdominal discomfort
• Diarrhoea or loose stools, especially with higher doses
• Heartburn or acid reflux
• Mild headache

Less Common Side Effects:

• Vomiting
• Bloating or flatulence (gas)
• Flushing or a warm sensation on the skin
• Fatigue or general tiredness

Rare but Serious Side Effects (seek medical attention immediately):

• Formation of kidney stones (oxalate stones), particularly with prolonged high-dose use
• Haemolysis (breakdown of red blood cells) in individuals with G6PD deficiency
• Allergic reactions such as skin rash, itching, swelling, or difficulty breathing
• Elevated uric acid levels, which may trigger gout in susceptible individuals

Contraindications of 21st Century Vitamin C 1000mg Prolonged Release

• Hypersensitivity or allergy to Ascorbic Acid or any of the inactive ingredients in the formulation
• History of kidney stones (renal calculi), particularly calcium oxalate or uric acid stones, as high-dose Vitamin C may increase the risk of stone formation
• Glucose-6-Phosphate Dehydrogenase (G6PD) deficiency, as high doses of Vitamin C may cause haemolytic anaemia in affected individuals
• Haemochromatosis or other iron overload conditions, since Vitamin C enhances iron absorption and may worsen iron accumulation
• Renal impairment or chronic kidney disease, where the kidneys may not efficiently excrete excess Vitamin C
• Patients with oxaluria (elevated oxalate in urine), as Ascorbic Acid is metabolised to oxalate
• Children under 12 years of age — this 1000mg high-dose formulation is intended for adult use only unless specifically directed by a paediatrician

Drug & Food Interactions of 21st Century Vitamin C 1000mg Prolonged Release

Drug Interactions:

• Iron supplements or iron-containing medications — Vitamin C significantly enhances non-haeme iron absorption, which may be beneficial or harmful depending on the individual's iron status
• Aluminium-containing antacids — Vitamin C may increase the absorption of aluminium, potentially leading to aluminium toxicity, especially in patients with kidney problems
• Warfarin and other anticoagulants — High doses of Vitamin C may interfere with the anticoagulant effect of warfarin; regular INR monitoring is advisable
• Statins (e.g., simvastatin, atorvastatin) — Some studies suggest that antioxidant vitamins including Vitamin C may reduce the efficacy of certain statin medications
• Chemotherapy agents — Vitamin C at high doses may potentially interfere with the effectiveness of certain cancer treatments; always consult an oncologist before use
• Aspirin and NSAIDs — Prolonged use alongside high-dose Vitamin C may increase the risk of gastrointestinal irritation
• Oral contraceptives and oestrogen-containing medications — May increase plasma oestrogen levels when taken with high-dose Vitamin C

Food Interactions:

• Foods high in oxalates (e.g., spinach, nuts, chocolate, tea) — Consuming these alongside high-dose Vitamin C may further increase urinary oxalate levels and kidney stone risk
• Alcohol — May reduce the absorption and utilisation of Vitamin C in the body
• High-sugar foods or drinks — Glucose may compete with Vitamin C for cellular uptake, potentially reducing its effectiveness

Quick Tips for 21st Century Vitamin C 1000mg Prolonged Release

• Swallow the tablet whole — never crush, split, or chew a prolonged-release tablet as it will destroy the time-release mechanism
• Take it with food or after a meal to minimise the risk of stomach upset or acid reflux
• Store in a cool, dry place away from sunlight and humidity — avoid keeping it in the bathroom or near the kitchen sink
• Check the expiry date on the packaging before taking each dose, especially if the bottle has been stored for a while
• Keep out of reach of children — store in a high cabinet or a locked medicine box at home
• Do not double up on doses — if you miss a dose, simply take it when you remember, but skip it if it is almost time for your next dose
• Inform your doctor or pharmacist about all other supplements and medications you are taking to avoid potential interactions
• Drink plenty of water throughout the day, especially if you are taking high-dose Vitamin C regularly, to help reduce the risk of kidney stone formation
• Do not exceed the recommended daily dose without medical supervision, particularly if you have kidney issues or a history of kidney stones
• Purchase from a licensed pharmacy or authorised online retailer to ensure you receive a genuine, properly stored product

FAQs of 21st Century Vitamin C 1000mg Prolonged Release

Q1: Do I need a prescription to buy 21st Century Vitamin C 1000mg Prolonged Release in Malaysia?
No, 21st Century Vitamin C 1000mg Prolonged Release is a dietary supplement and does not require a prescription to purchase in Malaysia. You can conveniently order it through our licensed online pharmacy without needing a doctor's referral, though we always recommend consulting a healthcare professional if you have any underlying health conditions.

Q2: Is it safe to order 21st Century Vitamin C 1000mg Prolonged Release online in Malaysia?
Yes, it is absolutely safe to order from our online pharmacy, which is a registered and authorised retailer operating in Malaysia. We source our products directly from verified distributors to ensure authenticity, proper storage, and product integrity before delivery to your doorstep.

Q3: How do I know the product I receive is genuine and not counterfeit?
All products sold through our platform are sourced from authorised distributors and verified suppliers. We only stock original, manufacturer-sealed products. You can also verify the product by checking the lot number, expiry date, and manufacturer details on the packaging upon receipt.

Q4: How long does delivery take within Malaysia?
We offer delivery across Peninsular Malaysia, Sabah, and Sarawak. Standard delivery typically takes 3 to 5 working days, while express delivery options may be available for certain locations. Orders placed before the daily cut-off time are usually processed and dispatched on the same business day.

Q5: Is there a minimum order quantity when purchasing 21st Century Vitamin C 1000mg Prolonged Release online?
No, there is no minimum order quantity. You can purchase as little as one bottle at a time. However, buying in larger quantities may qualify you for bundle deals or promotional discounts that we periodically offer on our platform.

Q6: How will my order be packaged for delivery?
Your order will be securely packed in protective packaging to prevent damage during transit and to maintain the product's quality. We take extra care to ensure that temperature-sensitive or fragile items are handled appropriately before dispatch.

Q7: Can I return or exchange the product if there is a problem with my order?
Yes, we have a customer-friendly return and exchange policy. If you receive a damaged, expired, or incorrect product, please contact our customer service team within the stipulated return window and we will arrange a replacement or refund accordingly. Please retain the original packaging and receipt for verification purposes.

Q8: Is 21st Century Vitamin C 1000mg Prolonged Release registered or approved for sale in Malaysia?
21st Century HealthCare products are widely distributed and sold through licensed pharmacies and health supplement retailers in Malaysia. As a dietary supplement, it is sold in compliance with local regulations. We recommend purchasing only from authorised pharmacies to ensure you receive a properly registered and authentic product.

Q9: How should I store the product after it arrives?
Once received, store the product in a cool, dry place away from direct sunlight and moisture, ideally below 30°C. Given Malaysia's tropical climate, avoid leaving it in your car or near windows. Keep the bottle tightly sealed and out of reach of children.

Q10: Can I track my order after purchasing online?
Yes, once your order has been dispatched, you will receive a tracking number via email or SMS so you can monitor your delivery status in real time. Our customer service team is also available to assist you with any delivery enquiries.

Q11: Are there any age restrictions for purchasing this product?
This product is formulated for adults aged 18 and above. It is not recommended for children under 12 years of age without specific medical advice. If purchasing for a teenager or elderly individual, we recommend consulting a pharmacist or doctor for appropriate dosage guidance.

Q12: What payment methods are accepted when ordering online in Malaysia?
We accept a variety of secure payment methods including online banking (FPX), credit and debit cards, e-wallets (such as Touch 'n Go eWallet and GrabPay), and other popular Malaysian payment platforms. All transactions are processed through a secure, encrypted payment gateway for your peace of mind.