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Description
General Medication Fact Sheet for Alfacalcidol
| Field | Information |
|---|---|
| Generic Name | Alfacalcidol |
| Brand Name Versions | One-Alpha, AlphaD3 |
| Purpose | Treats conditions where there is a disturbance in calcium metabolism due to impaired vitamin D activation, such as chronic kidney disease, hypoparathyroidism, and certain types of rickets/osteomalacia. Helps increase absorption of calcium and phosphate. |
| Mechanism of Action | A vitamin D analog (prodrug) that is converted in the liver to Calcitriol (active vitamin D), bypassing the kidney’s 1-alpha-hydroxylase enzyme activity. Calcitriol increases intestinal absorption of calcium and phosphate and regulates parathyroid hormone. |
| Dosage Forms | Oral capsules, Oral solution, Injection |
| Available Strengths | Capsules: 0.25 mcg, 0.5 mcg, 1 mcg. Oral Solution: 2 mcg/mL. Injection: 2 mcg/mL. |
| Dosage Frequency | Typically once daily. |
| Common Side Effects | Hypercalcemia (high blood calcium) symptoms such as nausea, vomiting, constipation, thirst, increased urination, muscle weakness, fatigue, headache, rash. |
| Serious Side Effects | Severe hypercalcemia leading to kidney damage, kidney stones, heart rhythm problems, allergic reactions, calcification of soft tissues with long-term excessive use. |
| Drug Interactions | Thiazide diuretics, magnesium-containing antacids, phosphate binders, digitalis, corticosteroids, other vitamin D supplements or analogs. |
| Important Notes | Regular monitoring of blood calcium, phosphate, PTH, and alkaline phosphatase levels is required. Dosage is highly individualized. Avoid taking other vitamin D supplements unless directed by a doctor. Report symptoms of high calcium immediately to your doctor. |
| Storage | Store at room temperature, away from moisture and light. Keep out of reach of children. |
| Missed Dose | Take as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue your regular dosing schedule. Do not double the dose. |
| Alternatives | Calcitriol, Doxercalciferol, Paricalcitol, Ergocalciferol, Cholecalciferol |
Alfacalcidol Alternatives
| Medication | Mechanism of Action | Notes |
|---|---|---|
| Calcitriol (Rocaltrol) | Active form of Vitamin D; increases intestinal calcium and phosphate absorption. | Directly provides active vitamin D, bypassing the need for renal activation. Often used in similar conditions, especially severe renal impairment. |
| Doxercalciferol (Hectorol) | Vitamin D2 analog; requires liver activation to become active Calcitriol. | Used primarily for secondary hyperparathyroidism in chronic kidney disease. |
| Paricalcitol (Zemplar) | Vitamin D analog; requires minimal activation. | Used primarily for secondary hyperparathyroidism and vitamin D deficiency in chronic kidney disease. |
| Ergocalciferol (Vitamin D2) / Cholecalciferol (Vitamin D3) | Require both liver and kidney activation (via 1-alpha-hydroxylase) to become active Calcitriol. | Less suitable when kidney function is significantly impaired as the kidney activation step is often deficient. |
Alfacalcidol Side Effects
| Common Side Effects | Serious Side Effects |
|---|---|
| Hypercalcemia symptoms (nausea, vomiting, constipation, thirst, frequent urination, muscle weakness, fatigue) | Severe hypercalcemia leading to organ damage (kidneys, heart) |
| Headache | Kidney stones |
| Rash | Heart rhythm problems |
| Itching | Allergic reactions (severe rash, swelling, difficulty breathing) |
Alfacalcidol Dosage Guide
| Condition | Starting Dose | Maintenance Dose | Administration Notes |
|---|---|---|---|
| Chronic Kidney Disease-Mineral and Bone Disorder (CKD-MBD) | Typically 0.25 mcg once daily or every other day. | Individualized based on serum calcium, phosphate, and PTH levels. Often ranges from 0.25 mcg to 2 mcg daily or intermittently. | Doses should be adjusted based on regular laboratory monitoring. May be taken with or without food. |
| Hypoparathyroidism | Varies; often starts at 0.25 mcg to 1 mcg once daily. | Individualized based on serum calcium levels and clinical response. | Requires careful monitoring of serum calcium. Dosage adjustments needed to maintain calcium within the target range. |
| Vitamin D-Dependent Rickets/Osteomalacia | Highly variable depending on type and severity. Can range from 0.25 mcg to several mcg daily. | Individualized based on clinical response and biochemical parameters (calcium, phosphate, alkaline phosphatase). | Treatment requires close medical supervision and monitoring. |
Why Americans Buy Haloperidol from Canada Pharmacy Store?
Why Americans Buy Alfacalcidol from Canada Pharmacy Store?
Americans have trouble affording Alfacalcidol due to numerous factors—but at Canada Pharmacy Store, we offer a safe, affordable alternative. That’s why thousands of Americans trust us to fill their prescriptions with real savings and real service.
Big Savings on U.S. Medications
Our customers save up to 80% on their Alfacalcidol prescriptions compared to U.S. pharmacy prices by ordering through licensed Canadian and international pharmacies.
Free Prescription Transfers
We make it easy! Our pharmacy team can transfer your Alfacalcidol prescriptions directly from your doctor or local pharmacy – completely free of charge.
Direct Access to Experts
Our licensed pharmacists are available to support you, answer your questions, and help ensure you’re confident in your treatment.
Referral Discounts
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Discreet U.S. Shipping
All orders are packaged discreetly and shipped securely to your U.S. address, with your privacy and safety as top priorities.
Trusted by Americans Nationwide
With years of experience and verified medication sources, we’ve become a go-to solution for Americans looking to cut costs without compromising care.
How to Order Haloperidol Online
How to Order Alfacalcidol Online
Step 1
Select Your Prescribed Alfacalcidol Dosage
Choose the strength and quantity as directed by your healthcare provider and add it to your cart.
Step 2
Proceed Through Secure Checkout
Follow the steps to complete your order and provide necessary shipping and payment details.
Step 3
Upload Your Alfacalcidol Prescription
Submit a prescription from a licensed U.S. healthcare provider that matches your order.
At Canada Pharmacy Store, patient safety comes first. We strictly comply with prescription regulations and do not ship any medication without a valid, verifiable prescription. Orders may be declined if a prescription appears falsified or altered in any way. We take these precautions to protect your health and ensure lawful, responsible practices.
Guarantee
Our Guarantee When You Buy Alfacalcidol Through Canada Pharmacy Store
At Canada Pharmacy Store, your safety and satisfaction are our top priorities. We supply only authentic, high-quality medications by working exclusively with licensed Canadian pharmacies and trusted international partners. Every order is filled in accordance with strict regulatory standards and includes medication that’s fully approved by Health Canada or other recognized health authorities such as the MHRA (UK), HSA (Singapore), and the Pharmacy Board of Mauritius.
The Alfacalcidol you receive is the same active medication as what’s available in the U.S.—the only difference is the packaging, which reflects its country of origin. Our licensed healthcare professionals review each order carefully to ensure it matches your prescription exactly.
To get Alfacalcidol at a lower price, simply place your order above or give us a call at 1-888-903-2240
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