Viewing nowCalcitriol Soft Gelatin Capsule 1 Microgram (Alfacalcidol)
Alfacalcidol 1μg
Soft capsule · OTC medication
Medica Korea Co., Ltd.

MFDS item code 202600029 · Notified 2026.01.05
Improvement of symptoms related to vitamin D metabolism disorders (hypocalcemia, bone lesions, etc.) and osteoporosis
This medication helps improve symptoms of hypocalcemia, tetany, bone pain, and bone lesions due to vitamin D metabolism disorders such as chronic renal failure, hypoparathyroidism, vitamin D-resistant rickets, and osteomalacia. It is also used to treat osteoporosis to strengthen bones and maintain bone density, thereby reducing the risk of fractures. Therefore, this medication effectively improves symptoms associated with various bone-related diseases and calcium metabolism disorders.
Chronic renal failure and osteoporosis: Administer 0.5–1 µg orally once a day as Alfacalcidol. Hypoparathyroidism, and diseases due to other vitamin D metabolism disorders: Administer 1–4 µg orally once a day as this medication.
Osteoporosis: Administer 0.01–0.03 µg per kg body weight orally once a day as Alfacalcidol. Other diseases: Administer 0.05–0.1 µg per kg body weight orally once a day as this medication.
This medication should not be taken by patients with abnormally high levels of calcium, phosphorus, or magnesium in the blood. While taking this medication, it is important not to use magnesium-containing drugs, vitamin D or its derivatives, calcium-containing medications, and certain diuretics. Women who are breastfeeding should avoid taking this medication since it could be transmitted to the baby; if it must be taken, breastfeeding should be discontinued. Women who are pregnant or may become pregnant should take this medication cautiously after consulting a physician due to the potential risk of harm to the fetus. Children, elderly patients, those taking certain medications, and individuals with a history of kidney stones or specific allergies should consult with a healthcare professional before use. If symptoms such as vomiting, loss of appetite, headache, muscle spasms, renal dysfunction, or skin rash occur while taking this medication, stop taking it immediately and consult a healthcare professional. Regularly monitor blood calcium levels during treatment to prevent side effects from overdose, and carefully manage calcium intake. Store this medication away from direct sunlight and in a cool, dry place, ensuring it is kept out of reach of children.
Hives, severe swelling (edema), chest tightness, difficulty breathing, cold sweat, pallor, severe rash accompanied by high fever, blisters, skin peeling, pain in oral/ocular mucosa, shortness of breath or difficulty in breathing, asthma attack, respiratory abnormalities associated with cough + fever, yellowing of the skin or eyes (jaundice), extreme lethargy, sudden and severe headache, thunderclap headache, seizures, confusion of consciousness, vision abnormalities, paralysis, urination
Loss of appetite, nausea, vomiting, diarrhea, constipation, abdominal pain, discomfort in the stomach, abdominal bloating, indigestion, thirst, oral discomfort, polydipsia, pancreatitis, metallic taste, muscle cramps in the legs, headache, heaviness in the head, insomnia, anxiety, weakness, fatigue, dizziness, numbness, drowsiness, heartburn, shoulder stiffness, presbycusis, tinnitus, decrement in cognitive and mnemonic ability, organic mental disorder, consciousness disturbance, back pain, mild hypertension, palpitations,
Not everyone experiences these, and they can vary from person to person.
This medication may be sensitive to light, so it should be stored in opaque containers. Additionally, it is recommended to store it at a cool room temperature, between 1 to 30 degrees Celsius. This will help maintain the drug's effectiveness and prevent degradation.
Orange oval soft gelatin capsules containing a colorless or clear oily substance
Bottle - 30 capsules/bottle, Bottle - 100 capsules/bottle, PTP - 100 capsules/box [10 capsules/PTP x 10]
Even with the same ingredient, strength, dosage form and how it is taken can differ.
Viewing nowAlfacalcidol 1μg
Soft capsule · OTC medication
Medica Korea Co., Ltd.

Alfacalcidol 0.5μg
Tablet · OTC medication
Il Sung I.S. Corporation

Alfacalcidol 0.5μg
Soft capsule · OTC medication
Youngpoong Pharmaceutical Co., Ltd.
Alfacalcidol 0.5μg
Soft capsule · OTC medication
Anguk Pharmaceutical Co., Ltd.

Alfacalcidol 1μg
Soft capsule · OTC medication
Ahn-Gook Pharmaceutical Co., Ltd.

Alfacalcidol 1μg
Soft capsule · OTC medication
Korea Prime Pharmaceutical Co., Ltd.

Alfacalcidol 0.5μg
Soft capsule · OTC medication
Shinil Pharmaceutical Co., Ltd.

Alfacalcidol 0.5μg
Soft capsule · OTC medication
Austin Pharmaceutical Co., Ltd.
Even with the same ingredient, the dose and directions can differ by strength and dosage form. Talk to a doctor or pharmacist before switching from a medication you are already taking.
No questions yet.
For anything that needs medical judgment, consult a doctor or pharmacist.
This drug information is based on data provided by the Korea Ministry of Food and Drug Safety.
Consult a doctor or pharmacist for accurate dosage, administration, and usage instructions.