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One-Alpha 1mcg Capsule 10s (strip) - DoctorOnCall Online Pharmacy
One-Alpha 1mcg Capsule 10s (strip) - DoctorOnCall Online Pharmacy
One-Alpha 1mcg Capsule 10s (strip) - DoctorOnCall Online Pharmacy One-Alpha 1mcg Capsule 10s (strip) - DoctorOnCall Online Pharmacy

One-Alpha 1mcg Capsule 10s (strip)

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100% Authentic
We ensure that all our pharmaceutical products including health supplements and traditional preparations are registered with the National Pharmaceutical Regulatory Authority (NPRA) Malaysia
Free Delivery on orders above RM120
Enjoy free delivery with a minimum spend of RM120 on our platform.
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Pre-Order (Delivered within 7 - 14 days)
Pre-Order Item (Delivered Within 7 - 14 Days)

While this product may not be readily stocked, it's available for pre-order. Please anticipate a delivery time of 7 to 14 working days. Once your order has been placed with our supplier, cancellations will not be accepted.

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Term & Condition
100% Authentic
We ensure that all our pharmaceutical products including health supplements and traditional preparations are registered with the National Pharmaceutical Regulatory Authority (NPRA) Malaysia
Free Delivery on orders above RM120
Enjoy free delivery with a minimum spend of RM120 on our platform.

Product Overview

Introduction of One-Alpha 1mcg Capsule 10s (strip)

One-Alpha 1mcg Capsule is a prescription-only vitamin D analogue belonging to the class of synthetic vitamin D derivatives, with alfacalcidol as its active ingredient. If you've been prescribed this capsule, it's important to know that like most medications, it can cause some side effects — the most commonly reported ones include hypercalcaemia (high calcium levels in the blood), nausea, headache, and skin rash. This medicine requires careful monitoring during your treatment, so regular blood and urine tests are typically recommended by your doctor to keep things on track. You should always take it exactly as your doctor has prescribed — do not adjust your dose on your own, and make sure to inform your healthcare provider about any other medicines or supplements you are currently taking, especially calcium or other vitamin D products. We want you to feel confident and well-informed before you start your treatment, so read through the details below carefully.

How to Take One-Alpha 1mcg Capsule

One-Alpha 1mcg Capsule is taken orally and can be swallowed whole with or without food, making it convenient to incorporate into your daily routine. It is generally taken once daily or as directed by your doctor, and consistency in timing each day helps maintain stable levels in your body. Always follow your prescribing doctor's specific instructions, as your dose may be individually adjusted based on your blood calcium levels and overall health condition.

Dosage of One-Alpha 1mcg Capsule

The typical starting dose for adults is 1 mcg per day, which may be adjusted by your doctor based on regular monitoring of calcium levels in your blood and urine. Dosage requirements can vary depending on the individual's condition and response to treatment, so it is essential to follow your doctor's prescribed regimen and never self-adjust your dose.

Shelf Life of One-Alpha 1mcg Capsule
One-Alpha 1mcg Capsule generally 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 blister pack or carton before use, and do not consume the capsule if it has passed its expiration date. Discard any unused or expired capsules safely and responsibly.

How to Store One-Alpha 1mcg Capsule

  • Store below 25°C in a cool, dry place away from direct sunlight and moisture
  • Keep the capsules in their original packaging until ready to use
  • Do not store in the bathroom or near a sink where humidity is high
  • Keep out of reach of children and pets at all times
  • Do not freeze the capsules unless specifically directed on the packaging
  • If you are unsure about storage conditions, consult your pharmacist for guidance

Active Ingredient of One-Alpha 1mcg Capsule

ComponentDetails
Active IngredientAlfacalcidol
Strength1 microgram (mcg) per capsule
Drug ClassSynthetic Vitamin D Analogue
Dosage FormSoft Gelatin Capsule (Oral)

Alfacalcidol is a synthetic analogue of vitamin D that is converted in the liver to the active form of vitamin D (calcitriol). It plays a key role in regulating calcium and phosphate metabolism in the body and is used under medical supervision for specific conditions related to calcium and bone health.

Side Effects of One-Alpha 1mcg Capsule

Like all medicines, One-Alpha 1mcg Capsule may cause side effects in some people. Not everyone will experience them, but it is important to be aware of what to watch out for.

Common Side Effects:

  • Hypercalcaemia (elevated calcium levels in the blood) — may cause symptoms such as fatigue, weakness, or confusion
  • Nausea and vomiting
  • Loss of appetite
  • Headache
  • Constipation or diarrhoea
  • Increased thirst and frequent urination

Less Common Side Effects:

  • Skin rash or itching
  • Hypercalciuria (high calcium levels in the urine)
  • Muscle weakness or pain
  • Abdominal discomfort or stomach pain
  • Dizziness
  • Weight loss

Rare but Serious Side Effects (Seek Immediate Medical Attention):

  • Severe hypercalcaemia leading to confusion, irregular heartbeat, or kidney problems
  • Calcification of soft tissues (deposits of calcium in organs or blood vessels)
  • Nephrocalcinosis (calcium deposits in the kidneys)
  • Allergic reactions including swelling of the face, lips, or throat

⚠️ Important: If you notice any unusual or severe symptoms while taking this medicine, stop use and contact your doctor or nearest healthcare facility immediately.

Contraindications of One-Alpha 1mcg Capsule

  • Hypercalcaemia — patients who already have elevated calcium levels in the blood
  • Hypervitaminosis D — conditions caused by excessive vitamin D in the body
  • Known hypersensitivity to alfacalcidol or any of the excipients in the capsule formulation
  • Metastatic calcification — abnormal calcium deposits in body tissues
  • Patients with severe renal impairment unless specifically directed and closely monitored by a specialist
  • Use in pregnant or breastfeeding women should only be considered if the potential benefit outweighs the risk, as determined by a qualified doctor
  • Patients taking other vitamin D preparations concurrently without medical supervision

Always disclose your full medical history and current medications to your doctor before starting One-Alpha 1mcg Capsule.

Drug & Food Interaction of One-Alpha 1mcg Capsule

Being aware of potential interactions helps you use this medicine safely. Inform your doctor or pharmacist if you are taking any of the following:

Drug Interactions:

  • Calcium supplements — concurrent use may increase the risk of hypercalcaemia; dose adjustments may be required
  • Thiazide diuretics (e.g., hydrochlorothiazide) — may enhance calcium retention and increase the risk of high calcium levels
  • Cardiac glycosides (e.g., digoxin) — hypercalcaemia induced by alfacalcidol may increase the risk of cardiac arrhythmias
  • Antacids containing magnesium — may cause elevated magnesium levels when used alongside alfacalcidol
  • Cholestyramine, mineral oils, or orlistat — may reduce the intestinal absorption of alfacalcidol
  • Phenytoin or barbiturates — may reduce the effectiveness of alfacalcidol by increasing its metabolism
  • Corticosteroids — may counteract the effects of alfacalcidol on calcium regulation
  • Other vitamin D analogues or supplements — concurrent use increases the risk of vitamin D toxicity

Food Interactions:

  • High intake of calcium-rich foods (e.g., dairy products, fortified foods) should be monitored carefully while on this medication
  • Avoid excessive consumption of vitamin D-fortified foods or supplements unless advised by your doctor
  • Maintain a balanced diet as recommended by your healthcare provider to support treatment outcomes

Always inform your doctor or pharmacist about all prescription medicines, over-the-counter drugs, herbal supplements, and vitamins you are currently taking.

Quick Tips for One-Alpha 1mcg Capsule

  • ✅ Always take this medicine exactly as prescribed — do not increase or decrease your dose without consulting your doctor first
  • ✅ Attend all scheduled blood and urine tests — regular monitoring of calcium levels is essential during treatment
  • ✅ Do not take additional vitamin D or calcium supplements unless your doctor has specifically approved them
  • ✅ Store your capsules properly — keep them in a cool, dry place below 25°C and away from direct sunlight
  • ✅ Check the expiry date before taking each capsule and never use expired medicine
  • ✅ Keep the medicine in its original packaging to protect it from moisture and to retain important dosage information
  • ✅ Inform all your healthcare providers (including dentists and specialists) that you are taking One-Alpha 1mcg Capsule
  • ✅ Do not share your medicine with others, even if they appear to have a similar condition — this is a prescription medicine tailored to your needs
  • ✅ If you miss a dose, take it as soon as you remember — but if it's almost time for your next dose, skip the missed one and continue as normal. Never double dose.
  • ✅ Dispose of unused or expired capsules responsibly — return them to a pharmacy for safe disposal rather than throwing them in household waste

Frequently Asked Questions (FAQs) About One-Alpha 1mcg Capsule

Q1: Do I need a prescription to buy One-Alpha 1mcg Capsule in Malaysia?
A:Yes, One-Alpha 1mcg Capsule is a prescription-only medicine (POM) in Malaysia. You will need a valid prescription from a registered medical practitioner to purchase this product. Our online pharmacy in Malaysia complies fully with the regulations set by the Ministry of Health Malaysia (MOH) and the Pharmacy Board of Malaysia, ensuring that your purchase is safe, legal, and responsible.

Q2: Can I order One-Alpha 1mcg Capsule online in Malaysia?
A:Yes, you can order One-Alpha 1mcg Capsule through our licensed online pharmacy in Malaysia. Simply upload your valid prescription during the checkout process, and our team of registered pharmacists will verify it before processing your order. We make the process as smooth and convenient as possible while ensuring full compliance with Malaysian pharmaceutical regulations.

Q3: How do I know the One-Alpha 1mcg Capsule I purchase from you is authentic?
A:We source all our medicines exclusively from authorised distributors and licensed pharmaceutical suppliers in Malaysia. Every product we carry is registered with the National Pharmaceutical Regulatory Agency (NPRA) under the Ministry of Health Malaysia. You can also verify the product's registration status on the NPRA's official BeSSeT portal for your peace of mind.

Q4: How long does delivery take for One-Alpha 1mcg Capsule within Malaysia?
A:We offer reliable delivery across Peninsular Malaysia, Sabah, and Sarawak. Standard delivery typically takes 3 to 5 working days, while express delivery options may be available depending on your location. Orders are carefully packed to maintain product integrity and comply with safe medicine handling standards during transit.

Q5: Is it safe to have prescription medicine like One-Alpha 1mcg Capsule delivered to my home?
A:Absolutely. Our pharmacy follows strict cold chain and packaging protocols to ensure that your medicine arrives safely and in perfect condition. All deliveries are handled discreetly and securely. Our registered pharmacists are also available to answer any questions you may have before or after your order is placed.

Q6: What should I do if my One-Alpha 1mcg Capsule arrives damaged or incorrect?
A:If your order arrives damaged, tampered with, or incorrect, please contact our customer service team immediately with your order details and a photo of the product. We take product integrity very seriously and will arrange a replacement or refund promptly in accordance with our returns policy.

Q7: Can I get a refill of One-Alpha 1mcg Capsule without visiting a clinic?
A:If you have a valid and current prescription from your doctor, you may be able to refill your order through our online pharmacy without an additional clinic visit. However, if your prescription has expired or your doctor has requested a review before the next refill, you will need to consult your healthcare provider first. We always prioritise your safety above convenience.

Q8: How should I store One-Alpha 1mcg Capsule after it has been delivered?
A:Once received, store your One-Alpha 1mcg Capsule in a cool, dry place below 25°C, away from direct sunlight and moisture. Keep it in its original packaging and out of reach of children. Do not store it in the bathroom or kitchen where humidity levels tend to be higher.

Q9: What if I accidentally order the wrong strength or quantity?
A:Please double-check your prescription and order details before confirming your purchase. If you've made an error, contact our customer service team as soon as possible — ideally before the order is dispatched. Our friendly team will do their best to assist you with amendments, subject to our order management policy.

Q10: Is my personal and medical information safe when I order from your online pharmacy?
A:Yes, absolutely. We take data privacy and confidentiality very seriously. All personal and medical information you provide is protected in accordance with Malaysia's Personal Data Protection Act (PDPA) 2010. Your prescription details and order history are handled securely and will never be shared with third parties without your consent.

💊 Have more questions? Our team of registered pharmacists is here to help. Feel free to reach out via our website's live chat, WhatsApp, or email — we're happy to assist you make informed and safe decisions about your medicine.

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Benefits

Alfacalcidol is a vitamin D supplement used to treat deficiency in conditions including hypocalcemia (low blood calcium levels), rickets (bone weakness), and others. Calcium metabolism disorders (deficiency and elevation of calcium levels in the bones or blood).

Brands

One-Alpha

Ingredients

Alfacalcidol 1 microgram, Sesame oil; all-rac-α-tocopherol; gelatine (bovine); glycerol; potassium sorbate (E202); red iron oxide (E172); black iron oxide (E172).

Manufactured by

LEO Pharmaceutical

Side Effects

As with all medications, you may experience some side effects. Not everyone experiences it. This is not a cause for concern. However, it is so that you are aware of it.

About One-Alpha 1mcg Capsule 10s (strip)

Hypocalcemia means you have a lower serum calcium level than normal in your blood results. However, you may or may not present with symptoms. Possible presenting symptoms include tingling or twitching of your muscles and irregular heartbeats. 

Here are steps to manage hypocalcemia.

Disclaimer

Information last updated on: Fri Apr 24 2026 04:53:11 GMT+0000 (Coordinated Universal Time) The product images shown are for illustration purposes only and may not be an exact representation of the product.

The content provided on this webpage is to provide information only, to be fully-interpreted by a medical professional, and not intended as a guide to make purchase decisions, or a substitute to advice of a medical professional. Effectiveness and side effects of medication may differ from individual to individual. We do not encourage any customer to self-diagnose and/or self-medicate. Patients should always consult a medical professional before taking or using any medication. The content provided here is non-exhaustive and may not cover all aspects of the medication. Our service should only be used to support the doctor-patient dynamic, not replace it.

The fulfilment of prescription medication is subject to our review of a prescription issued by a Malaysian Medical Council (MMC) registered doctor. If required, we will provide a tele-consult service with one of our registered panel doctors. This is not an advertisement of a medicine as such an advertisement would require prior approval from the Medicines Advertisement Board of Malaysia. One-Alpha 1mcg Capsule 10s (strip) is available in many areas in Malaysia. Kuala Lumpur, Bukit Bintang, Titiwangsa, Setiawangsa, Wangsa Maju, Kepong, Segambut, Bandar Tun Razak, Cheras, Subang Jaya, Petaling Jaya, Mont Kiara, Puchong, Bandar Sunway, TTDI, Seri Kembangan, Klang, Bukit Tinggi, Damansara, Sentul, Penang, George Town, Jelutong, Gelugor, Bayan Baru, Bandar Baru Air Itam, Sungai Ara, Bukit Mertajam, Butterworth, Perai, Johor Bahru, Skudai, Bukit Indah, Gelang Patah, Senai, Pasir Gudang, Taman Daya, Taman Molek, Taman Perling, Tebrau, Danga Bay, Larkin, Nusajaya, Pontian, Masai, Setia Tropika, Desaru, Tampoi.


One-Alpha 1mcg Capsule 10s (strip) is available at many places in Singapore. Ang Mo Kio, Alexandra, Admiralty, Bedok, Bishan, Bukit Batok, Bukit Merah, Bukit Panjang, Bukit Timah, Boat Quay, Buona Vista, Beach Road, Bugis, Balestier, Boon Lay, Central Area, Choa Chu Kang, Clementi, Chinatown, Commonwealt, City Hall, Clarke Quay, Changi Airport, Changi Village, Clementi Park, Dairy Farm, Eunos, East Coast, Farrer Park, Geylang, Hougang, Harbourfront, Holland, Jurong, Jurong East, Jurong West, Kallang/ Whampoa, Lim Chu Kang, Marine Parade, Marina, Macpherson, Mandai, Newton, Novena, Orchard, Pasir Ris, Punggol, Potong Pasir, Paya Lebar, Queenstown, Raffles Place, Rochor, River Valley, Sembawang, Sengkang, Serangoon, Serangoon Rd, Seletar, Tampines, Toa Payoh, Tanjong Pagar, Telok Blangah, Tanglin, Thomson, Tuas, Tengah, Upper East Coast, Upper Bukit Timah, Upper Thomson, Woodlands, West Coast, Yishun, Yio Chu Kang.
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